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Finding the Fourth Proportional to 475,092,001.80, 712,638,002.70 and 242,639,708.40

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Solution

The fourth proportional to 475,092,001.80, 712,638,002.70 and 242,639,708.40 is: 363,959,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,092,001.80 : 712,638,002.70 = 242,639,708.40 : x
  2. Step 2: Convert to fraction form
    475,092,001.80/712,638,002.70 = 242,639,708.40/x
  3. Step 3: Cross multiply
    475,092,001.80x = 712,638,002.70 × 242,639,708.40
  4. Step 4: Simplify right side
    475,092,001.80x = 172,914,277,169,886,432
  5. Step 5: Solve for x
    x = 172,914,277,169,886,432/475,092,001.80
  6. Step 6: Final answer
    x = 363,959,562.60

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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.