Home / 15,187,806.48-20,959,228.49-8,218,484.10

Finding the Fourth Proportional to 15,187,806.48, 20,959,228.49 and 8,218,484.10

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Solution

The fourth proportional to 15,187,806.48, 20,959,228.49 and 8,218,484.10 is: 11,341,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187,806.48 : 20,959,228.49 = 8,218,484.10 : x
  2. Step 2: Convert to fraction form
    15,187,806.48/20,959,228.49 = 8,218,484.10/x
  3. Step 3: Cross multiply
    15,187,806.48x = 20,959,228.49 × 8,218,484.10
  4. Step 4: Simplify right side
    15,187,806.48x = 172,253,086,129,240.56
  5. Step 5: Solve for x
    x = 172,253,086,129,240.56/15,187,806.48
  6. Step 6: Final answer
    x = 11,341,538.12

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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.