Home / 80,429,569.28-110,989,489.92-43,760,286.08

Finding the Fourth Proportional to 80,429,569.28, 110,989,489.92 and 43,760,286.08

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Solution

The fourth proportional to 80,429,569.28, 110,989,489.92 and 43,760,286.08 is: 60,387,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,429,569.28 : 110,989,489.92 = 43,760,286.08 : x
  2. Step 2: Convert to fraction form
    80,429,569.28/110,989,489.92 = 43,760,286.08/x
  3. Step 3: Cross multiply
    80,429,569.28x = 110,989,489.92 × 43,760,286.08
  4. Step 4: Simplify right side
    80,429,569.28x = 4,856,931,830,772,476
  5. Step 5: Solve for x
    x = 4,856,931,830,772,476/80,429,569.28
  6. Step 6: Final answer
    x = 60,387,390.78

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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.