Home / 20,169,868.38-30,260,965.77-12,091,837.02

Finding the Fourth Proportional to 20,169,868.38, 30,260,965.77 and 12,091,837.02

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Solution

The fourth proportional to 20,169,868.38, 30,260,965.77 and 12,091,837.02 is: 18,141,450.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169,868.38 : 30,260,965.77 = 12,091,837.02 : x
  2. Step 2: Convert to fraction form
    20,169,868.38/30,260,965.77 = 12,091,837.02/x
  3. Step 3: Cross multiply
    20,169,868.38x = 30,260,965.77 × 12,091,837.02
  4. Step 4: Simplify right side
    20,169,868.38x = 365,910,666,158,638.81
  5. Step 5: Solve for x
    x = 365,910,666,158,638.81/20,169,868.38
  6. Step 6: Final answer
    x = 18,141,450.37

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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.