Home / 99,664,077.10-149,496,115.65-72,790,221.10

Finding the Fourth Proportional to 99,664,077.10, 149,496,115.65 and 72,790,221.10

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Solution

The fourth proportional to 99,664,077.10, 149,496,115.65 and 72,790,221.10 is: 109,185,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,664,077.10 : 149,496,115.65 = 72,790,221.10 : x
  2. Step 2: Convert to fraction form
    99,664,077.10/149,496,115.65 = 72,790,221.10/x
  3. Step 3: Cross multiply
    99,664,077.10x = 149,496,115.65 × 72,790,221.10
  4. Step 4: Simplify right side
    99,664,077.10x = 10,881,855,311,754,670
  5. Step 5: Solve for x
    x = 10,881,855,311,754,670/99,664,077.10
  6. Step 6: Final answer
    x = 109,185,331.65

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Similar ratio
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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.