Home / 15,219,321.38-21,002,658.45-8,343,655.82

Finding the Fourth Proportional to 15,219,321.38, 21,002,658.45 and 8,343,655.82

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Solution

The fourth proportional to 15,219,321.38, 21,002,658.45 and 8,343,655.82 is: 11,514,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219,321.38 : 21,002,658.45 = 8,343,655.82 : x
  2. Step 2: Convert to fraction form
    15,219,321.38/21,002,658.45 = 8,343,655.82/x
  3. Step 3: Cross multiply
    15,219,321.38x = 21,002,658.45 × 8,343,655.82
  4. Step 4: Simplify right side
    15,219,321.38x = 175,238,953,411,814.69
  5. Step 5: Solve for x
    x = 175,238,953,411,814.69/15,219,321.38
  6. Step 6: Final answer
    x = 11,514,242.26

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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.