Home / 18,691,808.10-28,018,358.55-10,154,105.70

Finding the Fourth Proportional to 18,691,808.10, 28,018,358.55 and 10,154,105.70

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Solution

The fourth proportional to 18,691,808.10, 28,018,358.55 and 10,154,105.70 is: 15,220,644.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691,808.10 : 28,018,358.55 = 10,154,105.70 : x
  2. Step 2: Convert to fraction form
    18,691,808.10/28,018,358.55 = 10,154,105.70/x
  3. Step 3: Cross multiply
    18,691,808.10x = 28,018,358.55 × 10,154,105.70
  4. Step 4: Simplify right side
    18,691,808.10x = 284,501,374,257,198.75
  5. Step 5: Solve for x
    x = 284,501,374,257,198.75/18,691,808.10
  6. Step 6: Final answer
    x = 15,220,644.93

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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.