Home / 15,718,833.66-21,691,987.11-8,749,360.92

Finding the Fourth Proportional to 15,718,833.66, 21,691,987.11 and 8,749,360.92

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Solution

The fourth proportional to 15,718,833.66, 21,691,987.11 and 8,749,360.92 is: 12,074,116.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718,833.66 : 21,691,987.11 = 8,749,360.92 : x
  2. Step 2: Convert to fraction form
    15,718,833.66/21,691,987.11 = 8,749,360.92/x
  3. Step 3: Cross multiply
    15,718,833.66x = 21,691,987.11 × 8,749,360.92
  4. Step 4: Simplify right side
    15,718,833.66x = 189,791,024,297,377.72
  5. Step 5: Solve for x
    x = 189,791,024,297,377.72/15,718,833.66
  6. Step 6: Final answer
    x = 12,074,116.21

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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.