Home / 20,758,782.24-31,124,867.76-8,636,654.88

Finding the Fourth Proportional to 20,758,782.24, 31,124,867.76 and 8,636,654.88

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Solution

The fourth proportional to 20,758,782.24, 31,124,867.76 and 8,636,654.88 is: 12,949,446.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,758,782.24 : 31,124,867.76 = 8,636,654.88 : x
  2. Step 2: Convert to fraction form
    20,758,782.24/31,124,867.76 = 8,636,654.88/x
  3. Step 3: Cross multiply
    20,758,782.24x = 31,124,867.76 × 8,636,654.88
  4. Step 4: Simplify right side
    20,758,782.24x = 268,814,741,028,758.72
  5. Step 5: Solve for x
    x = 268,814,741,028,758.72/20,758,782.24
  6. Step 6: Final answer
    x = 12,949,446.55

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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.