Home / 90,834,785.20-136,283,670.60-39,753,463.60

Finding the Fourth Proportional to 90,834,785.20, 136,283,670.60 and 39,753,463.60

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Solution

The fourth proportional to 90,834,785.20, 136,283,670.60 and 39,753,463.60 is: 59,643,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,834,785.20 : 136,283,670.60 = 39,753,463.60 : x
  2. Step 2: Convert to fraction form
    90,834,785.20/136,283,670.60 = 39,753,463.60/x
  3. Step 3: Cross multiply
    90,834,785.20x = 136,283,670.60 × 39,753,463.60
  4. Step 4: Simplify right side
    90,834,785.20x = 5,417,747,938,471,490
  5. Step 5: Solve for x
    x = 5,417,747,938,471,490/90,834,785.20
  6. Step 6: Final answer
    x = 59,643,978.09

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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.