Home / 21,043,556.60-31,541,724.41-13,771,008.86

Finding the Fourth Proportional to 21,043,556.60, 31,541,724.41 and 13,771,008.86

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Solution

The fourth proportional to 21,043,556.60, 31,541,724.41 and 13,771,008.86 is: 20,641,062.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043,556.60 : 31,541,724.41 = 13,771,008.86 : x
  2. Step 2: Convert to fraction form
    21,043,556.60/31,541,724.41 = 13,771,008.86/x
  3. Step 3: Cross multiply
    21,043,556.60x = 31,541,724.41 × 13,771,008.86
  4. Step 4: Simplify right side
    21,043,556.60x = 434,361,366,083,224.62
  5. Step 5: Solve for x
    x = 434,361,366,083,224.62/21,043,556.60
  6. Step 6: Final answer
    x = 20,641,062.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.