Home / 20,676,424.91-28,532,997.56-12,945,733.07

Finding the Fourth Proportional to 20,676,424.91, 28,532,997.56 and 12,945,733.07

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Solution

The fourth proportional to 20,676,424.91, 28,532,997.56 and 12,945,733.07 is: 17,864,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676,424.91 : 28,532,997.56 = 12,945,733.07 : x
  2. Step 2: Convert to fraction form
    20,676,424.91/28,532,997.56 = 12,945,733.07/x
  3. Step 3: Cross multiply
    20,676,424.91x = 28,532,997.56 × 12,945,733.07
  4. Step 4: Simplify right side
    20,676,424.91x = 369,380,569,891,327.62
  5. Step 5: Solve for x
    x = 369,380,569,891,327.62/20,676,424.91
  6. Step 6: Final answer
    x = 17,864,818.10

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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.