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Finding the Fourth Proportional to 82,978,839.30, 124,468,258.95 and 44,715,087.30

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Solution

The fourth proportional to 82,978,839.30, 124,468,258.95 and 44,715,087.30 is: 67,072,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,978,839.30 : 124,468,258.95 = 44,715,087.30 : x
  2. Step 2: Convert to fraction form
    82,978,839.30/124,468,258.95 = 44,715,087.30/x
  3. Step 3: Cross multiply
    82,978,839.30x = 124,468,258.95 × 44,715,087.30
  4. Step 4: Simplify right side
    82,978,839.30x = 5,565,609,065,028,256
  5. Step 5: Solve for x
    x = 5,565,609,065,028,256/82,978,839.30
  6. Step 6: Final answer
    x = 67,072,630.95

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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.