Home / 82,464,046.40-123,696,069.60-77,761,121.60

Finding the Fourth Proportional to 82,464,046.40, 123,696,069.60 and 77,761,121.60

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Solution

The fourth proportional to 82,464,046.40, 123,696,069.60 and 77,761,121.60 is: 116,641,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,464,046.40 : 123,696,069.60 = 77,761,121.60 : x
  2. Step 2: Convert to fraction form
    82,464,046.40/123,696,069.60 = 77,761,121.60/x
  3. Step 3: Cross multiply
    82,464,046.40x = 123,696,069.60 × 77,761,121.60
  4. Step 4: Simplify right side
    82,464,046.40x = 9,618,745,109,607,662
  5. Step 5: Solve for x
    x = 9,618,745,109,607,662/82,464,046.40
  6. Step 6: Final answer
    x = 116,641,682.40

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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.