Home / 18,408,961.88-25,386,165.68-15,625,685.44

Finding the Fourth Proportional to 18,408,961.88, 25,386,165.68 and 15,625,685.44

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Solution

The fourth proportional to 18,408,961.88, 25,386,165.68 and 15,625,685.44 is: 21,547,996.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,408,961.88 : 25,386,165.68 = 15,625,685.44 : x
  2. Step 2: Convert to fraction form
    18,408,961.88/25,386,165.68 = 15,625,685.44/x
  3. Step 3: Cross multiply
    18,408,961.88x = 25,386,165.68 × 15,625,685.44
  4. Step 4: Simplify right side
    18,408,961.88x = 396,676,239,443,403.69
  5. Step 5: Solve for x
    x = 396,676,239,443,403.69/18,408,961.88
  6. Step 6: Final answer
    x = 21,547,996.14

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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.