Home / 12,115,546.68-16,721,263.98-7,769,540.28

Finding the Fourth Proportional to 12,115,546.68, 16,721,263.98 and 7,769,540.28

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Solution

The fourth proportional to 12,115,546.68, 16,721,263.98 and 7,769,540.28 is: 10,723,126.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,546.68 : 16,721,263.98 = 7,769,540.28 : x
  2. Step 2: Convert to fraction form
    12,115,546.68/16,721,263.98 = 7,769,540.28/x
  3. Step 3: Cross multiply
    12,115,546.68x = 16,721,263.98 × 7,769,540.28
  4. Step 4: Simplify right side
    12,115,546.68x = 129,916,534,025,123.12
  5. Step 5: Solve for x
    x = 129,916,534,025,123.12/12,115,546.68
  6. Step 6: Final answer
    x = 10,723,126.03

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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.