Home / 409,317,615.20-613,976,422.80-225,013,876.40

Finding the Fourth Proportional to 409,317,615.20, 613,976,422.80 and 225,013,876.40

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Solution

The fourth proportional to 409,317,615.20, 613,976,422.80 and 225,013,876.40 is: 337,520,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,317,615.20 : 613,976,422.80 = 225,013,876.40 : x
  2. Step 2: Convert to fraction form
    409,317,615.20/613,976,422.80 = 225,013,876.40/x
  3. Step 3: Cross multiply
    409,317,615.20x = 613,976,422.80 × 225,013,876.40
  4. Step 4: Simplify right side
    409,317,615.20x = 138,153,214,912,433,328
  5. Step 5: Solve for x
    x = 138,153,214,912,433,328/409,317,615.20
  6. Step 6: Final answer
    x = 337,520,814.60

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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.