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Finding the Fourth Proportional to 240,361,318.80, 360,541,978.20 and 157,137,658.20

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Solution

The fourth proportional to 240,361,318.80, 360,541,978.20 and 157,137,658.20 is: 235,706,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,361,318.80 : 360,541,978.20 = 157,137,658.20 : x
  2. Step 2: Convert to fraction form
    240,361,318.80/360,541,978.20 = 157,137,658.20/x
  3. Step 3: Cross multiply
    240,361,318.80x = 360,541,978.20 × 157,137,658.20
  4. Step 4: Simplify right side
    240,361,318.80x = 56,654,722,137,143,448
  5. Step 5: Solve for x
    x = 56,654,722,137,143,448/240,361,318.80
  6. Step 6: Final answer
    x = 235,706,487.30

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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.