Home / 20,687,337.18-28,548,524.88-11,990,554.38

Finding the Fourth Proportional to 20,687,337.18, 28,548,524.88 and 11,990,554.38

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Solution

The fourth proportional to 20,687,337.18, 28,548,524.88 and 11,990,554.38 is: 16,546,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,337.18 : 28,548,524.88 = 11,990,554.38 : x
  2. Step 2: Convert to fraction form
    20,687,337.18/28,548,524.88 = 11,990,554.38/x
  3. Step 3: Cross multiply
    20,687,337.18x = 28,548,524.88 × 11,990,554.38
  4. Step 4: Simplify right side
    20,687,337.18x = 342,312,640,042,423
  5. Step 5: Solve for x
    x = 342,312,640,042,423/20,687,337.18
  6. Step 6: Final answer
    x = 16,546,964.80

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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.