Home / 207,904,939.46-286,862,948.15-123,089,943.72

Finding the Fourth Proportional to 207,904,939.46, 286,862,948.15 and 123,089,943.72

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Solution

The fourth proportional to 207,904,939.46, 286,862,948.15 and 123,089,943.72 is: 169,836,966.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,904,939.46 : 286,862,948.15 = 123,089,943.72 : x
  2. Step 2: Convert to fraction form
    207,904,939.46/286,862,948.15 = 123,089,943.72/x
  3. Step 3: Cross multiply
    207,904,939.46x = 286,862,948.15 × 123,089,943.72
  4. Step 4: Simplify right side
    207,904,939.46x = 35,309,944,142,790,976
  5. Step 5: Solve for x
    x = 35,309,944,142,790,976/207,904,939.46
  6. Step 6: Final answer
    x = 169,836,966.04

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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.