Home / 108,811,691.82-163,281,310.65-78,073,144.38

Finding the Fourth Proportional to 108,811,691.82, 163,281,310.65 and 78,073,144.38

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Solution

The fourth proportional to 108,811,691.82, 163,281,310.65 and 78,073,144.38 is: 117,155,474.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,811,691.82 : 163,281,310.65 = 78,073,144.38 : x
  2. Step 2: Convert to fraction form
    108,811,691.82/163,281,310.65 = 78,073,144.38/x
  3. Step 3: Cross multiply
    108,811,691.82x = 163,281,310.65 × 78,073,144.38
  4. Step 4: Simplify right side
    108,811,691.82x = 12,747,885,340,933,082
  5. Step 5: Solve for x
    x = 12,747,885,340,933,082/108,811,691.82
  6. Step 6: Final answer
    x = 117,155,474.08

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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.