Home / 31,940,805.20-47,911,207.80-8,911,695.20

Finding the Fourth Proportional to 31,940,805.20, 47,911,207.80 and 8,911,695.20

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Solution

The fourth proportional to 31,940,805.20, 47,911,207.80 and 8,911,695.20 is: 13,367,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,940,805.20 : 47,911,207.80 = 8,911,695.20 : x
  2. Step 2: Convert to fraction form
    31,940,805.20/47,911,207.80 = 8,911,695.20/x
  3. Step 3: Cross multiply
    31,940,805.20x = 47,911,207.80 × 8,911,695.20
  4. Step 4: Simplify right side
    31,940,805.20x = 426,970,080,577,462.50
  5. Step 5: Solve for x
    x = 426,970,080,577,462.50/31,940,805.20
  6. Step 6: Final answer
    x = 13,367,542.80

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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.