Home / 653,443,375.20-980,165,062.80-505,490,200.80

Finding the Fourth Proportional to 653,443,375.20, 980,165,062.80 and 505,490,200.80

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Solution

The fourth proportional to 653,443,375.20, 980,165,062.80 and 505,490,200.80 is: 758,235,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,443,375.20 : 980,165,062.80 = 505,490,200.80 : x
  2. Step 2: Convert to fraction form
    653,443,375.20/980,165,062.80 = 505,490,200.80/x
  3. Step 3: Cross multiply
    653,443,375.20x = 980,165,062.80 × 505,490,200.80
  4. Step 4: Simplify right side
    653,443,375.20x = 495,463,834,411,916,608
  5. Step 5: Solve for x
    x = 495,463,834,411,916,608/653,443,375.20
  6. Step 6: Final answer
    x = 758,235,301.20

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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.