Home / 177,379,813.60-266,069,720.40-128,628,959.20

Finding the Fourth Proportional to 177,379,813.60, 266,069,720.40 and 128,628,959.20

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Solution

The fourth proportional to 177,379,813.60, 266,069,720.40 and 128,628,959.20 is: 192,943,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,379,813.60 : 266,069,720.40 = 128,628,959.20 : x
  2. Step 2: Convert to fraction form
    177,379,813.60/266,069,720.40 = 128,628,959.20/x
  3. Step 3: Cross multiply
    177,379,813.60x = 266,069,720.40 × 128,628,959.20
  4. Step 4: Simplify right side
    177,379,813.60x = 34,224,271,209,687,008
  5. Step 5: Solve for x
    x = 34,224,271,209,687,008/177,379,813.60
  6. Step 6: Final answer
    x = 192,943,438.80

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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.