Home / 647,034,332.20-970,551,498.30-429,356,098.60

Finding the Fourth Proportional to 647,034,332.20, 970,551,498.30 and 429,356,098.60

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Solution

The fourth proportional to 647,034,332.20, 970,551,498.30 and 429,356,098.60 is: 644,034,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,034,332.20 : 970,551,498.30 = 429,356,098.60 : x
  2. Step 2: Convert to fraction form
    647,034,332.20/970,551,498.30 = 429,356,098.60/x
  3. Step 3: Cross multiply
    647,034,332.20x = 970,551,498.30 × 429,356,098.60
  4. Step 4: Simplify right side
    647,034,332.20x = 416,712,204,800,472,512
  5. Step 5: Solve for x
    x = 416,712,204,800,472,512/647,034,332.20
  6. Step 6: Final answer
    x = 644,034,147.90

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Similar ratio
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1.5x scale

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.