Home / 411,211,977.85-616,757,293.88-120,000,910.28

Finding the Fourth Proportional to 411,211,977.85, 616,757,293.88 and 120,000,910.28

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Solution

The fourth proportional to 411,211,977.85, 616,757,293.88 and 120,000,910.28 is: 179,983,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,211,977.85 : 616,757,293.88 = 120,000,910.28 : x
  2. Step 2: Convert to fraction form
    411,211,977.85/616,757,293.88 = 120,000,910.28/x
  3. Step 3: Cross multiply
    411,211,977.85x = 616,757,293.88 × 120,000,910.28
  4. Step 4: Simplify right side
    411,211,977.85x = 74,011,436,686,829,472
  5. Step 5: Solve for x
    x = 74,011,436,686,829,472/411,211,977.85
  6. Step 6: Final answer
    x = 179,983,659.70

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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.