Home / 408,147,338,657.80-612,221,007,986.70-274,928,259,694.60

Finding the Fourth Proportional to 408,147,338,657.80, 612,221,007,986.70 and 274,928,259,694.60

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Solution

The fourth proportional to 408,147,338,657.80, 612,221,007,986.70 and 274,928,259,694.60 is: 412,392,389,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,147,338,657.80 : 612,221,007,986.70 = 274,928,259,694.60 : x
  2. Step 2: Convert to fraction form
    408,147,338,657.80/612,221,007,986.70 = 274,928,259,694.60/x
  3. Step 3: Cross multiply
    408,147,338,657.80x = 612,221,007,986.70 × 274,928,259,694.60
  4. Step 4: Simplify right side
    408,147,338,657.80x = 168,316,856,274,257,214,177,280
  5. Step 5: Solve for x
    x = 168,316,856,274,257,214,177,280/408,147,338,657.80
  6. Step 6: Final answer
    x = 412,392,389,541.90

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Double scale
Find fourth proportional to 408,147,338,658.80, 612,221,007,988.20 and 274,928,259,695.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.