Home / 14,207,138.60-21,279,215.10-8,538,434.60

Finding the Fourth Proportional to 14,207,138.60, 21,279,215.10 and 8,538,434.60

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Solution

The fourth proportional to 14,207,138.60, 21,279,215.10 and 8,538,434.60 is: 12,788,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,207,138.60 : 21,279,215.10 = 8,538,434.60 : x
  2. Step 2: Convert to fraction form
    14,207,138.60/21,279,215.10 = 8,538,434.60/x
  3. Step 3: Cross multiply
    14,207,138.60x = 21,279,215.10 × 8,538,434.60
  4. Step 4: Simplify right side
    14,207,138.60x = 181,691,186,470,682.47
  5. Step 5: Solve for x
    x = 181,691,186,470,682.47/14,207,138.60
  6. Step 6: Final answer
    x = 12,788,724.85

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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.