Home / 20,169,868.88-30,260,966.52-12,091,837.52

Finding the Fourth Proportional to 20,169,868.88, 30,260,966.52 and 12,091,837.52

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Solution

The fourth proportional to 20,169,868.88, 30,260,966.52 and 12,091,837.52 is: 18,141,451.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169,868.88 : 30,260,966.52 = 12,091,837.52 : x
  2. Step 2: Convert to fraction form
    20,169,868.88/30,260,966.52 = 12,091,837.52/x
  3. Step 3: Cross multiply
    20,169,868.88x = 30,260,966.52 × 12,091,837.52
  4. Step 4: Simplify right side
    20,169,868.88x = 365,910,690,357,999.81
  5. Step 5: Solve for x
    x = 365,910,690,357,999.81/20,169,868.88
  6. Step 6: Final answer
    x = 18,141,451.12

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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.