Home / 647,034,333.20-970,551,499.80-429,356,099.60

Finding the Fourth Proportional to 647,034,333.20, 970,551,499.80 and 429,356,099.60

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Solution

The fourth proportional to 647,034,333.20, 970,551,499.80 and 429,356,099.60 is: 644,034,149.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,034,333.20 : 970,551,499.80 = 429,356,099.60 : x
  2. Step 2: Convert to fraction form
    647,034,333.20/970,551,499.80 = 429,356,099.60/x
  3. Step 3: Cross multiply
    647,034,333.20x = 970,551,499.80 × 429,356,099.60
  4. Step 4: Simplify right side
    647,034,333.20x = 416,712,206,415,058,176
  5. Step 5: Solve for x
    x = 416,712,206,415,058,176/647,034,333.20
  6. Step 6: Final answer
    x = 644,034,149.40

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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.