Home / 388,338,049.20-582,507,073.80-101,123,713.20

Finding the Fourth Proportional to 388,338,049.20, 582,507,073.80 and 101,123,713.20

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Solution

The fourth proportional to 388,338,049.20, 582,507,073.80 and 101,123,713.20 is: 151,685,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,338,049.20 : 582,507,073.80 = 101,123,713.20 : x
  2. Step 2: Convert to fraction form
    388,338,049.20/582,507,073.80 = 101,123,713.20/x
  3. Step 3: Cross multiply
    388,338,049.20x = 582,507,073.80 × 101,123,713.20
  4. Step 4: Simplify right side
    388,338,049.20x = 58,905,278,267,922,432
  5. Step 5: Solve for x
    x = 58,905,278,267,922,432/388,338,049.20
  6. Step 6: Final answer
    x = 151,685,569.80

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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.