Home / 20,406,196.76-28,162,540.61-15,240,590.24

Finding the Fourth Proportional to 20,406,196.76, 28,162,540.61 and 15,240,590.24

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Solution

The fourth proportional to 20,406,196.76, 28,162,540.61 and 15,240,590.24 is: 21,033,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406,196.76 : 28,162,540.61 = 15,240,590.24 : x
  2. Step 2: Convert to fraction form
    20,406,196.76/28,162,540.61 = 15,240,590.24/x
  3. Step 3: Cross multiply
    20,406,196.76x = 28,162,540.61 × 15,240,590.24
  4. Step 4: Simplify right side
    20,406,196.76x = 429,213,741,554,369.62
  5. Step 5: Solve for x
    x = 429,213,741,554,369.62/20,406,196.76
  6. Step 6: Final answer
    x = 21,033,500.10

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Double scale
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1.5x scale

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.