Home / 431,489,187.60-647,252,674.20-124,812,301.20

Finding the Fourth Proportional to 431,489,187.60, 647,252,674.20 and 124,812,301.20

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Solution

The fourth proportional to 431,489,187.60, 647,252,674.20 and 124,812,301.20 is: 187,223,916.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,489,187.60 : 647,252,674.20 = 124,812,301.20 : x
  2. Step 2: Convert to fraction form
    431,489,187.60/647,252,674.20 = 124,812,301.20/x
  3. Step 3: Cross multiply
    431,489,187.60x = 647,252,674.20 × 124,812,301.20
  4. Step 4: Simplify right side
    431,489,187.60x = 80,785,095,724,755,872
  5. Step 5: Solve for x
    x = 80,785,095,724,755,872/431,489,187.60
  6. Step 6: Final answer
    x = 187,223,916.72

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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.