Home / 20,169,869.13-30,260,966.90-12,091,837.77

Finding the Fourth Proportional to 20,169,869.13, 30,260,966.90 and 12,091,837.77

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Solution

The fourth proportional to 20,169,869.13, 30,260,966.90 and 12,091,837.77 is: 18,141,451.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169,869.13 : 30,260,966.90 = 12,091,837.77 : x
  2. Step 2: Convert to fraction form
    20,169,869.13/30,260,966.90 = 12,091,837.77/x
  3. Step 3: Cross multiply
    20,169,869.13x = 30,260,966.90 × 12,091,837.77
  4. Step 4: Simplify right side
    20,169,869.13x = 365,910,702,457,680.62
  5. Step 5: Solve for x
    x = 365,910,702,457,680.62/20,169,869.13
  6. Step 6: Final answer
    x = 18,141,451.49

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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.