Home / 408,147,338,686.80-612,221,008,030.20-274,928,259,723.60

Finding the Fourth Proportional to 408,147,338,686.80, 612,221,008,030.20 and 274,928,259,723.60

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Solution

The fourth proportional to 408,147,338,686.80, 612,221,008,030.20 and 274,928,259,723.60 is: 412,392,389,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,147,338,686.80 : 612,221,008,030.20 = 274,928,259,723.60 : x
  2. Step 2: Convert to fraction form
    408,147,338,686.80/612,221,008,030.20 = 274,928,259,723.60/x
  3. Step 3: Cross multiply
    408,147,338,686.80x = 612,221,008,030.20 × 274,928,259,723.60
  4. Step 4: Simplify right side
    408,147,338,686.80x = 168,316,856,303,971,005,890,560
  5. Step 5: Solve for x
    x = 168,316,856,303,971,005,890,560/408,147,338,686.80
  6. Step 6: Final answer
    x = 412,392,389,585.40

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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.