Home / 20,501,452.31-28,292,272.65-11,209,032.95

Finding the Fourth Proportional to 20,501,452.31, 28,292,272.65 and 11,209,032.95

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Solution

The fourth proportional to 20,501,452.31, 28,292,272.65 and 11,209,032.95 is: 15,468,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,452.31 : 28,292,272.65 = 11,209,032.95 : x
  2. Step 2: Convert to fraction form
    20,501,452.31/28,292,272.65 = 11,209,032.95/x
  3. Step 3: Cross multiply
    20,501,452.31x = 28,292,272.65 × 11,209,032.95
  4. Step 4: Simplify right side
    20,501,452.31x = 317,129,016,222,772.44
  5. Step 5: Solve for x
    x = 317,129,016,222,772.44/20,501,452.31
  6. Step 6: Final answer
    x = 15,468,612.25

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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.