Home / 20,723,742.72-28,598,951.04-11,431,668.48

Finding the Fourth Proportional to 20,723,742.72, 28,598,951.04 and 11,431,668.48

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Solution

The fourth proportional to 20,723,742.72, 28,598,951.04 and 11,431,668.48 is: 15,775,805.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,742.72 : 28,598,951.04 = 11,431,668.48 : x
  2. Step 2: Convert to fraction form
    20,723,742.72/28,598,951.04 = 11,431,668.48/x
  3. Step 3: Cross multiply
    20,723,742.72x = 28,598,951.04 × 11,431,668.48
  4. Step 4: Simplify right side
    20,723,742.72x = 326,933,727,165,031.25
  5. Step 5: Solve for x
    x = 326,933,727,165,031.25/20,723,742.72
  6. Step 6: Final answer
    x = 15,775,805.15

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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.