Home / 15,018,305.20-20,725,136.04-8,493,215.68

Finding the Fourth Proportional to 15,018,305.20, 20,725,136.04 and 8,493,215.68

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Solution

The fourth proportional to 15,018,305.20, 20,725,136.04 and 8,493,215.68 is: 11,720,566.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018,305.20 : 20,725,136.04 = 8,493,215.68 : x
  2. Step 2: Convert to fraction form
    15,018,305.20/20,725,136.04 = 8,493,215.68/x
  3. Step 3: Cross multiply
    15,018,305.20x = 20,725,136.04 × 8,493,215.68
  4. Step 4: Simplify right side
    15,018,305.20x = 176,023,050,385,061.09
  5. Step 5: Solve for x
    x = 176,023,050,385,061.09/15,018,305.20
  6. Step 6: Final answer
    x = 11,720,566.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.