Home / 727,466,966.52-1,003,904,815.72-392,939,487.02

Finding the Fourth Proportional to 727,466,966.52, 1,003,904,815.72 and 392,939,487.02

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Solution

The fourth proportional to 727,466,966.52, 1,003,904,815.72 and 392,939,487.02 is: 542,256,709.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,466,966.52 : 1,003,904,815.72 = 392,939,487.02 : x
  2. Step 2: Convert to fraction form
    727,466,966.52/1,003,904,815.72 = 392,939,487.02/x
  3. Step 3: Cross multiply
    727,466,966.52x = 1,003,904,815.72 × 392,939,487.02
  4. Step 4: Simplify right side
    727,466,966.52x = 394,473,843,305,924,416
  5. Step 5: Solve for x
    x = 394,473,843,305,924,416/727,466,966.52
  6. Step 6: Final answer
    x = 542,256,709.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.