Home / 15,036,512.38-20,750,586.15-8,161,076.86

Finding the Fourth Proportional to 15,036,512.38, 20,750,586.15 and 8,161,076.86

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Solution

The fourth proportional to 15,036,512.38, 20,750,586.15 and 8,161,076.86 is: 11,262,394.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036,512.38 : 20,750,586.15 = 8,161,076.86 : x
  2. Step 2: Convert to fraction form
    15,036,512.38/20,750,586.15 = 8,161,076.86/x
  3. Step 3: Cross multiply
    15,036,512.38x = 20,750,586.15 × 8,161,076.86
  4. Step 4: Simplify right side
    15,036,512.38x = 169,347,128,460,201.47
  5. Step 5: Solve for x
    x = 169,347,128,460,201.47/15,036,512.38
  6. Step 6: Final answer
    x = 11,262,394.11

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1.5x scale

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.