Home / 18,381,884.80-25,367,689.20-10,122,305.08

Finding the Fourth Proportional to 18,381,884.80, 25,367,689.20 and 10,122,305.08

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Solution

The fourth proportional to 18,381,884.80, 25,367,689.20 and 10,122,305.08 is: 13,969,159.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381,884.80 : 25,367,689.20 = 10,122,305.08 : x
  2. Step 2: Convert to fraction form
    18,381,884.80/25,367,689.20 = 10,122,305.08/x
  3. Step 3: Cross multiply
    18,381,884.80x = 25,367,689.20 × 10,122,305.08
  4. Step 4: Simplify right side
    18,381,884.80x = 256,779,489,257,021.12
  5. Step 5: Solve for x
    x = 256,779,489,257,021.12/18,381,884.80
  6. Step 6: Final answer
    x = 13,969,159.97

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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.