Home / 20,087,826.15-27,721,432.80-11,147,119.86

Finding the Fourth Proportional to 20,087,826.15, 27,721,432.80 and 11,147,119.86

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Solution

The fourth proportional to 20,087,826.15, 27,721,432.80 and 11,147,119.86 is: 15,383,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087,826.15 : 27,721,432.80 = 11,147,119.86 : x
  2. Step 2: Convert to fraction form
    20,087,826.15/27,721,432.80 = 11,147,119.86/x
  3. Step 3: Cross multiply
    20,087,826.15x = 27,721,432.80 × 11,147,119.86
  4. Step 4: Simplify right side
    20,087,826.15x = 309,014,134,112,535.38
  5. Step 5: Solve for x
    x = 309,014,134,112,535.38/20,087,826.15
  6. Step 6: Final answer
    x = 15,383,154.54

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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.