Home / 18,144,486.80-27,216,730.20-13,609,523.60

Finding the Fourth Proportional to 18,144,486.80, 27,216,730.20 and 13,609,523.60

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Solution

The fourth proportional to 18,144,486.80, 27,216,730.20 and 13,609,523.60 is: 20,414,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144,486.80 : 27,216,730.20 = 13,609,523.60 : x
  2. Step 2: Convert to fraction form
    18,144,486.80/27,216,730.20 = 13,609,523.60/x
  3. Step 3: Cross multiply
    18,144,486.80x = 27,216,730.20 × 13,609,523.60
  4. Step 4: Simplify right side
    18,144,486.80x = 370,406,731,971,732.69
  5. Step 5: Solve for x
    x = 370,406,731,971,732.69/18,144,486.80
  6. Step 6: Final answer
    x = 20,414,285.40

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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.