Home / 18,144,416.80-27,216,625.20-10,491,666.40

Finding the Fourth Proportional to 18,144,416.80, 27,216,625.20 and 10,491,666.40

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Solution

The fourth proportional to 18,144,416.80, 27,216,625.20 and 10,491,666.40 is: 15,737,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144,416.80 : 27,216,625.20 = 10,491,666.40 : x
  2. Step 2: Convert to fraction form
    18,144,416.80/27,216,625.20 = 10,491,666.40/x
  3. Step 3: Cross multiply
    18,144,416.80x = 27,216,625.20 × 10,491,666.40
  4. Step 4: Simplify right side
    18,144,416.80x = 285,547,752,132,233.31
  5. Step 5: Solve for x
    x = 285,547,752,132,233.31/18,144,416.80
  6. Step 6: Final answer
    x = 15,737,499.60

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Similar ratio
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1.5x scale

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.