Home / 78,732,124.20-118,098,186.30-40,397,513.40

Finding the Fourth Proportional to 78,732,124.20, 118,098,186.30 and 40,397,513.40

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Solution

The fourth proportional to 78,732,124.20, 118,098,186.30 and 40,397,513.40 is: 60,596,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,124.20 : 118,098,186.30 = 40,397,513.40 : x
  2. Step 2: Convert to fraction form
    78,732,124.20/118,098,186.30 = 40,397,513.40/x
  3. Step 3: Cross multiply
    78,732,124.20x = 118,098,186.30 × 40,397,513.40
  4. Step 4: Simplify right side
    78,732,124.20x = 4,770,873,063,569,946
  5. Step 5: Solve for x
    x = 4,770,873,063,569,946/78,732,124.20
  6. Step 6: Final answer
    x = 60,596,270.10

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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.