Home / 653,443,906.20-980,165,859.30-505,490,731.80

Finding the Fourth Proportional to 653,443,906.20, 980,165,859.30 and 505,490,731.80

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Solution

The fourth proportional to 653,443,906.20, 980,165,859.30 and 505,490,731.80 is: 758,236,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,443,906.20 : 980,165,859.30 = 505,490,731.80 : x
  2. Step 2: Convert to fraction form
    653,443,906.20/980,165,859.30 = 505,490,731.80/x
  3. Step 3: Cross multiply
    653,443,906.20x = 980,165,859.30 × 505,490,731.80
  4. Step 4: Simplify right side
    653,443,906.20x = 495,464,757,502,932,800
  5. Step 5: Solve for x
    x = 495,464,757,502,932,800/653,443,906.20
  6. Step 6: Final answer
    x = 758,236,097.70

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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.