Home / 21,385,884.52-29,514,084.78-12,218,330.44

Finding the Fourth Proportional to 21,385,884.52, 29,514,084.78 and 12,218,330.44

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Solution

The fourth proportional to 21,385,884.52, 29,514,084.78 and 12,218,330.44 is: 16,862,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385,884.52 : 29,514,084.78 = 12,218,330.44 : x
  2. Step 2: Convert to fraction form
    21,385,884.52/29,514,084.78 = 12,218,330.44/x
  3. Step 3: Cross multiply
    21,385,884.52x = 29,514,084.78 × 12,218,330.44
  4. Step 4: Simplify right side
    21,385,884.52x = 360,612,840,476,214.69
  5. Step 5: Solve for x
    x = 360,612,840,476,214.69/21,385,884.52
  6. Step 6: Final answer
    x = 16,862,189.64

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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.