Home / 138,961,690.88-208,381,710.72-57,024,354.56

Finding the Fourth Proportional to 138,961,690.88, 208,381,710.72 and 57,024,354.56

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Solution

The fourth proportional to 138,961,690.88, 208,381,710.72 and 57,024,354.56 is: 85,511,571.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,961,690.88 : 208,381,710.72 = 57,024,354.56 : x
  2. Step 2: Convert to fraction form
    138,961,690.88/208,381,710.72 = 57,024,354.56/x
  3. Step 3: Cross multiply
    138,961,690.88x = 208,381,710.72 × 57,024,354.56
  4. Step 4: Simplify right side
    138,961,690.88x = 11,882,832,555,916,634
  5. Step 5: Solve for x
    x = 11,882,832,555,916,634/138,961,690.88
  6. Step 6: Final answer
    x = 85,511,571.43

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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.