Home / 99,665,633.10-149,498,449.65-72,791,777.10

Finding the Fourth Proportional to 99,665,633.10, 149,498,449.65 and 72,791,777.10

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Solution

The fourth proportional to 99,665,633.10, 149,498,449.65 and 72,791,777.10 is: 109,187,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,665,633.10 : 149,498,449.65 = 72,791,777.10 : x
  2. Step 2: Convert to fraction form
    99,665,633.10/149,498,449.65 = 72,791,777.10/x
  3. Step 3: Cross multiply
    99,665,633.10x = 149,498,449.65 × 72,791,777.10
  4. Step 4: Simplify right side
    99,665,633.10x = 10,882,257,823,718,372
  5. Step 5: Solve for x
    x = 10,882,257,823,718,372/99,665,633.10
  6. Step 6: Final answer
    x = 109,187,665.65

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Similar ratio
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1.5x scale

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.