Home / 20,501,445.20-28,292,584.83-11,334,678.44

Finding the Fourth Proportional to 20,501,445.20, 28,292,584.83 and 11,334,678.44

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Solution

The fourth proportional to 20,501,445.20, 28,292,584.83 and 11,334,678.44 is: 15,642,182.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,445.20 : 28,292,584.83 = 11,334,678.44 : x
  2. Step 2: Convert to fraction form
    20,501,445.20/28,292,584.83 = 11,334,678.44/x
  3. Step 3: Cross multiply
    20,501,445.20x = 28,292,584.83 × 11,334,678.44
  4. Step 4: Simplify right side
    20,501,445.20x = 320,687,351,284,472
  5. Step 5: Solve for x
    x = 320,687,351,284,472/20,501,445.20
  6. Step 6: Final answer
    x = 15,642,182.69

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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.