Home / 15,219,324.38-21,002,662.59-8,343,658.82

Finding the Fourth Proportional to 15,219,324.38, 21,002,662.59 and 8,343,658.82

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Solution

The fourth proportional to 15,219,324.38, 21,002,662.59 and 8,343,658.82 is: 11,514,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219,324.38 : 21,002,662.59 = 8,343,658.82 : x
  2. Step 2: Convert to fraction form
    15,219,324.38/21,002,662.59 = 8,343,658.82/x
  3. Step 3: Cross multiply
    15,219,324.38x = 21,002,662.59 × 8,343,658.82
  4. Step 4: Simplify right side
    15,219,324.38x = 175,239,050,962,537.56
  5. Step 5: Solve for x
    x = 175,239,050,962,537.56/15,219,324.38
  6. Step 6: Final answer
    x = 11,514,246.40

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Double scale
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1.5x scale

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.