Home / 727,466,974.02-1,003,904,826.12-392,939,494.38

Finding the Fourth Proportional to 727,466,974.02, 1,003,904,826.12 and 392,939,494.38

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Solution

The fourth proportional to 727,466,974.02, 1,003,904,826.12 and 392,939,494.38 is: 542,256,719.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,466,974.02 : 1,003,904,826.12 = 392,939,494.38 : x
  2. Step 2: Convert to fraction form
    727,466,974.02/1,003,904,826.12 = 392,939,494.38/x
  3. Step 3: Cross multiply
    727,466,974.02x = 1,003,904,826.12 × 392,939,494.38
  4. Step 4: Simplify right side
    727,466,974.02x = 394,473,854,781,234,624
  5. Step 5: Solve for x
    x = 394,473,854,781,234,624/727,466,974.02
  6. Step 6: Final answer
    x = 542,256,719.37

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1.5x scale

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.