Home / 439,495,999.20-659,348,974.80-132,791,119.20

Finding the Fourth Proportional to 439,495,999.20, 659,348,974.80 and 132,791,119.20

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Solution

The fourth proportional to 439,495,999.20, 659,348,974.80 and 132,791,119.20 is: 199,218,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,495,999.20 : 659,348,974.80 = 132,791,119.20 : x
  2. Step 2: Convert to fraction form
    439,495,999.20/659,348,974.80 = 132,791,119.20/x
  3. Step 3: Cross multiply
    439,495,999.20x = 659,348,974.80 × 132,791,119.20
  4. Step 4: Simplify right side
    439,495,999.20x = 87,555,688,307,064,592
  5. Step 5: Solve for x
    x = 87,555,688,307,064,592/439,495,999.20
  6. Step 6: Final answer
    x = 199,218,396.68

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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.