Home / 20,645,540.48-28,489,231.84-11,477,624.96

Finding the Fourth Proportional to 20,645,540.48, 28,489,231.84 and 11,477,624.96

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Solution

The fourth proportional to 20,645,540.48, 28,489,231.84 and 11,477,624.96 is: 15,838,225.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645,540.48 : 28,489,231.84 = 11,477,624.96 : x
  2. Step 2: Convert to fraction form
    20,645,540.48/28,489,231.84 = 11,477,624.96/x
  3. Step 3: Cross multiply
    20,645,540.48x = 28,489,231.84 × 11,477,624.96
  4. Step 4: Simplify right side
    20,645,540.48x = 326,988,718,458,010.75
  5. Step 5: Solve for x
    x = 326,988,718,458,010.75/20,645,540.48
  6. Step 6: Final answer
    x = 15,838,225.15

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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.