Home / 12,068,005.80-18,123,003.90-6,399,301.80

Finding the Fourth Proportional to 12,068,005.80, 18,123,003.90 and 6,399,301.80

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Solution

The fourth proportional to 12,068,005.80, 18,123,003.90 and 6,399,301.80 is: 9,610,085.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,068,005.80 : 18,123,003.90 = 6,399,301.80 : x
  2. Step 2: Convert to fraction form
    12,068,005.80/18,123,003.90 = 6,399,301.80/x
  3. Step 3: Cross multiply
    12,068,005.80x = 18,123,003.90 × 6,399,301.80
  4. Step 4: Simplify right side
    12,068,005.80x = 115,974,571,478,677
  5. Step 5: Solve for x
    x = 115,974,571,478,677/12,068,005.80
  6. Step 6: Final answer
    x = 9,610,085.83

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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.