Home / 99,691,901.30-149,285,909.55-79,536,509.30

Finding the Fourth Proportional to 99,691,901.30, 149,285,909.55 and 79,536,509.30

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Solution

The fourth proportional to 99,691,901.30, 149,285,909.55 and 79,536,509.30 is: 119,103,758.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,691,901.30 : 149,285,909.55 = 79,536,509.30 : x
  2. Step 2: Convert to fraction form
    99,691,901.30/149,285,909.55 = 79,536,509.30/x
  3. Step 3: Cross multiply
    99,691,901.30x = 149,285,909.55 × 79,536,509.30
  4. Step 4: Simplify right side
    99,691,901.30x = 11,873,680,133,282,534
  5. Step 5: Solve for x
    x = 11,873,680,133,282,534/99,691,901.30
  6. Step 6: Final answer
    x = 119,103,758.46

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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.