Home / 411,211,977.35-616,757,293.13-120,000,909.78

Finding the Fourth Proportional to 411,211,977.35, 616,757,293.13 and 120,000,909.78

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Solution

The fourth proportional to 411,211,977.35, 616,757,293.13 and 120,000,909.78 is: 179,983,658.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,211,977.35 : 616,757,293.13 = 120,000,909.78 : x
  2. Step 2: Convert to fraction form
    411,211,977.35/616,757,293.13 = 120,000,909.78/x
  3. Step 3: Cross multiply
    411,211,977.35x = 616,757,293.13 × 120,000,909.78
  4. Step 4: Simplify right side
    411,211,977.35x = 74,011,436,288,450,144
  5. Step 5: Solve for x
    x = 74,011,436,288,450,144/411,211,977.35
  6. Step 6: Final answer
    x = 179,983,658.95

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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.