Home / 31,129,138.20-46,693,707.30-13,213,234.20

Finding the Fourth Proportional to 31,129,138.20, 46,693,707.30 and 13,213,234.20

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Solution

The fourth proportional to 31,129,138.20, 46,693,707.30 and 13,213,234.20 is: 19,819,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129,138.20 : 46,693,707.30 = 13,213,234.20 : x
  2. Step 2: Convert to fraction form
    31,129,138.20/46,693,707.30 = 13,213,234.20/x
  3. Step 3: Cross multiply
    31,129,138.20x = 46,693,707.30 × 13,213,234.20
  4. Step 4: Simplify right side
    31,129,138.20x = 616,974,890,221,149.62
  5. Step 5: Solve for x
    x = 616,974,890,221,149.62/31,129,138.20
  6. Step 6: Final answer
    x = 19,819,851.30

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Similar ratio
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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.