Home / 15,197,369.12-20,972,119.02-8,227,990.96

Finding the Fourth Proportional to 15,197,369.12, 20,972,119.02 and 8,227,990.96

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Solution

The fourth proportional to 15,197,369.12, 20,972,119.02 and 8,227,990.96 is: 11,354,491.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,197,369.12 : 20,972,119.02 = 8,227,990.96 : x
  2. Step 2: Convert to fraction form
    15,197,369.12/20,972,119.02 = 8,227,990.96/x
  3. Step 3: Cross multiply
    15,197,369.12x = 20,972,119.02 × 8,227,990.96
  4. Step 4: Simplify right side
    15,197,369.12x = 172,558,405,708,604.06
  5. Step 5: Solve for x
    x = 172,558,405,708,604.06/15,197,369.12
  6. Step 6: Final answer
    x = 11,354,491.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.