Home / 268,427,309.27-402,656,087.30-81,687,325.43

Finding the Fourth Proportional to 268,427,309.27, 402,656,087.30 and 81,687,325.43

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Solution

The fourth proportional to 268,427,309.27, 402,656,087.30 and 81,687,325.43 is: 122,535,590.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,427,309.27 : 402,656,087.30 = 81,687,325.43 : x
  2. Step 2: Convert to fraction form
    268,427,309.27/402,656,087.30 = 81,687,325.43/x
  3. Step 3: Cross multiply
    268,427,309.27x = 402,656,087.30 × 81,687,325.43
  4. Step 4: Simplify right side
    268,427,309.27x = 32,891,898,838,733,832
  5. Step 5: Solve for x
    x = 32,891,898,838,733,832/268,427,309.27
  6. Step 6: Final answer
    x = 122,535,590.47

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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.