Home / 21,385,885.52-29,514,086.16-12,218,331.44

Finding the Fourth Proportional to 21,385,885.52, 29,514,086.16 and 12,218,331.44

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Solution

The fourth proportional to 21,385,885.52, 29,514,086.16 and 12,218,331.44 is: 16,862,191.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385,885.52 : 29,514,086.16 = 12,218,331.44 : x
  2. Step 2: Convert to fraction form
    21,385,885.52/29,514,086.16 = 12,218,331.44/x
  3. Step 3: Cross multiply
    21,385,885.52x = 29,514,086.16 × 12,218,331.44
  4. Step 4: Simplify right side
    21,385,885.52x = 360,612,886,851,596.88
  5. Step 5: Solve for x
    x = 360,612,886,851,596.88/21,385,885.52
  6. Step 6: Final answer
    x = 16,862,191.02

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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.