Home / 99,664,086.60-149,496,129.90-72,790,230.60

Finding the Fourth Proportional to 99,664,086.60, 149,496,129.90 and 72,790,230.60

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Solution

The fourth proportional to 99,664,086.60, 149,496,129.90 and 72,790,230.60 is: 109,185,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,664,086.60 : 149,496,129.90 = 72,790,230.60 : x
  2. Step 2: Convert to fraction form
    99,664,086.60/149,496,129.90 = 72,790,230.60/x
  3. Step 3: Cross multiply
    99,664,086.60x = 149,496,129.90 × 72,790,230.60
  4. Step 4: Simplify right side
    99,664,086.60x = 10,881,857,769,228,554
  5. Step 5: Solve for x
    x = 10,881,857,769,228,554/99,664,086.60
  6. Step 6: Final answer
    x = 109,185,345.90

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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.