Home / 629,856,650.40-944,784,975.60-339,619,005.60

Finding the Fourth Proportional to 629,856,650.40, 944,784,975.60 and 339,619,005.60

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Solution

The fourth proportional to 629,856,650.40, 944,784,975.60 and 339,619,005.60 is: 509,428,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,650.40 : 944,784,975.60 = 339,619,005.60 : x
  2. Step 2: Convert to fraction form
    629,856,650.40/944,784,975.60 = 339,619,005.60/x
  3. Step 3: Cross multiply
    629,856,650.40x = 944,784,975.60 × 339,619,005.60
  4. Step 4: Simplify right side
    629,856,650.40x = 320,866,933,919,092,288
  5. Step 5: Solve for x
    x = 320,866,933,919,092,288/629,856,650.40
  6. Step 6: Final answer
    x = 509,428,508.40

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Double scale
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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.