Home / 21,321,613.80-29,423,832.12-12,031,156.44

Finding the Fourth Proportional to 21,321,613.80, 29,423,832.12 and 12,031,156.44

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Solution

The fourth proportional to 21,321,613.80, 29,423,832.12 and 12,031,156.44 is: 16,602,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,321,613.80 : 29,423,832.12 = 12,031,156.44 : x
  2. Step 2: Convert to fraction form
    21,321,613.80/29,423,832.12 = 12,031,156.44/x
  3. Step 3: Cross multiply
    21,321,613.80x = 29,423,832.12 × 12,031,156.44
  4. Step 4: Simplify right side
    21,321,613.80x = 354,002,727,300,016.88
  5. Step 5: Solve for x
    x = 354,002,727,300,016.88/21,321,613.80
  6. Step 6: Final answer
    x = 16,602,998.75

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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.