Home / 87,005,215.44-120,070,280.88-47,850,020.46

Finding the Fourth Proportional to 87,005,215.44, 120,070,280.88 and 47,850,020.46

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Solution

The fourth proportional to 87,005,215.44, 120,070,280.88 and 47,850,020.46 is: 66,034,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,005,215.44 : 120,070,280.88 = 47,850,020.46 : x
  2. Step 2: Convert to fraction form
    87,005,215.44/120,070,280.88 = 47,850,020.46/x
  3. Step 3: Cross multiply
    87,005,215.44x = 120,070,280.88 × 47,850,020.46
  4. Step 4: Simplify right side
    87,005,215.44x = 5,745,365,396,745,947
  5. Step 5: Solve for x
    x = 5,745,365,396,745,947/87,005,215.44
  6. Step 6: Final answer
    x = 66,034,724.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.