Home / 20,632,021.20-28,472,483.40-11,340,449.89

Finding the Fourth Proportional to 20,632,021.20, 28,472,483.40 and 11,340,449.89

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Solution

The fourth proportional to 20,632,021.20, 28,472,483.40 and 11,340,449.89 is: 15,649,982.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632,021.20 : 28,472,483.40 = 11,340,449.89 : x
  2. Step 2: Convert to fraction form
    20,632,021.20/28,472,483.40 = 11,340,449.89/x
  3. Step 3: Cross multiply
    20,632,021.20x = 28,472,483.40 × 11,340,449.89
  4. Step 4: Simplify right side
    20,632,021.20x = 322,890,771,241,556.81
  5. Step 5: Solve for x
    x = 322,890,771,241,556.81/20,632,021.20
  6. Step 6: Final answer
    x = 15,649,982.53

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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.