Home / 18,567,921.40-27,851,882.10-12,899,217.40

Finding the Fourth Proportional to 18,567,921.40, 27,851,882.10 and 12,899,217.40

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Solution

The fourth proportional to 18,567,921.40, 27,851,882.10 and 12,899,217.40 is: 19,348,826.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,567,921.40 : 27,851,882.10 = 12,899,217.40 : x
  2. Step 2: Convert to fraction form
    18,567,921.40/27,851,882.10 = 12,899,217.40/x
  3. Step 3: Cross multiply
    18,567,921.40x = 27,851,882.10 × 12,899,217.40
  4. Step 4: Simplify right side
    18,567,921.40x = 359,267,482,207,068.56
  5. Step 5: Solve for x
    x = 359,267,482,207,068.56/18,567,921.40
  6. Step 6: Final answer
    x = 19,348,826.10

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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.