Home / 40,819,953,855.80-61,230,124,446.91-12,489,840,174.68

Finding the Fourth Proportional to 40,819,953,855.80, 61,230,124,446.91 and 12,489,840,174.68

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Solution

The fourth proportional to 40,819,953,855.80, 61,230,124,446.91 and 12,489,840,174.68 is: 18,734,819,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,819,953,855.80 : 61,230,124,446.91 = 12,489,840,174.68 : x
  2. Step 2: Convert to fraction form
    40,819,953,855.80/61,230,124,446.91 = 12,489,840,174.68/x
  3. Step 3: Cross multiply
    40,819,953,855.80x = 61,230,124,446.91 × 12,489,840,174.68
  4. Step 4: Simplify right side
    40,819,953,855.80x = 764,754,468,217,586,319,360
  5. Step 5: Solve for x
    x = 764,754,468,217,586,319,360/40,819,953,855.80
  6. Step 6: Final answer
    x = 18,734,819,517.90

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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.