Home / 87,160,634.56-120,294,752.16-66,218,205.04

Finding the Fourth Proportional to 87,160,634.56, 120,294,752.16 and 66,218,205.04

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Solution

The fourth proportional to 87,160,634.56, 120,294,752.16 and 66,218,205.04 is: 91,391,057.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,160,634.56 : 120,294,752.16 = 66,218,205.04 : x
  2. Step 2: Convert to fraction form
    87,160,634.56/120,294,752.16 = 66,218,205.04/x
  3. Step 3: Cross multiply
    87,160,634.56x = 120,294,752.16 × 66,218,205.04
  4. Step 4: Simplify right side
    87,160,634.56x = 7,965,702,563,766,863
  5. Step 5: Solve for x
    x = 7,965,702,563,766,863/87,160,634.56
  6. Step 6: Final answer
    x = 91,391,057.49

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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.