Home / 13,612,138.20-20,418,207.30-12,124,103.40

Finding the Fourth Proportional to 13,612,138.20, 20,418,207.30 and 12,124,103.40

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Solution

The fourth proportional to 13,612,138.20, 20,418,207.30 and 12,124,103.40 is: 18,186,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612,138.20 : 20,418,207.30 = 12,124,103.40 : x
  2. Step 2: Convert to fraction form
    13,612,138.20/20,418,207.30 = 12,124,103.40/x
  3. Step 3: Cross multiply
    13,612,138.20x = 20,418,207.30 × 12,124,103.40
  4. Step 4: Simplify right side
    13,612,138.20x = 247,552,456,547,834.84
  5. Step 5: Solve for x
    x = 247,552,456,547,834.84/13,612,138.20
  6. Step 6: Final answer
    x = 18,186,155.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.