Home / 13,486,516.70-20,229,775.05-8,101,247.90

Finding the Fourth Proportional to 13,486,516.70, 20,229,775.05 and 8,101,247.90

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Solution

The fourth proportional to 13,486,516.70, 20,229,775.05 and 8,101,247.90 is: 12,151,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486,516.70 : 20,229,775.05 = 8,101,247.90 : x
  2. Step 2: Convert to fraction form
    13,486,516.70/20,229,775.05 = 8,101,247.90/x
  3. Step 3: Cross multiply
    13,486,516.70x = 20,229,775.05 × 8,101,247.90
  4. Step 4: Simplify right side
    13,486,516.70x = 163,886,422,641,284.91
  5. Step 5: Solve for x
    x = 163,886,422,641,284.91/13,486,516.70
  6. Step 6: Final answer
    x = 12,151,871.85

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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.