Home / 42,981,797.70-64,472,696.55-38,278,872.90

Finding the Fourth Proportional to 42,981,797.70, 64,472,696.55 and 38,278,872.90

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Solution

The fourth proportional to 42,981,797.70, 64,472,696.55 and 38,278,872.90 is: 57,418,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,981,797.70 : 64,472,696.55 = 38,278,872.90 : x
  2. Step 2: Convert to fraction form
    42,981,797.70/64,472,696.55 = 38,278,872.90/x
  3. Step 3: Cross multiply
    42,981,797.70x = 64,472,696.55 × 38,278,872.90
  4. Step 4: Simplify right side
    42,981,797.70x = 2,467,942,156,757,718.50
  5. Step 5: Solve for x
    x = 2,467,942,156,757,718.50/42,981,797.70
  6. Step 6: Final answer
    x = 57,418,309.35

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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.