Home / 13,896,781.20-20,853,360.90-5,809,133.70

Finding the Fourth Proportional to 13,896,781.20, 20,853,360.90 and 5,809,133.70

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Solution

The fourth proportional to 13,896,781.20, 20,853,360.90 and 5,809,133.70 is: 8,717,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896,781.20 : 20,853,360.90 = 5,809,133.70 : x
  2. Step 2: Convert to fraction form
    13,896,781.20/20,853,360.90 = 5,809,133.70/x
  3. Step 3: Cross multiply
    13,896,781.20x = 20,853,360.90 × 5,809,133.70
  4. Step 4: Simplify right side
    13,896,781.20x = 121,139,961,562,452.33
  5. Step 5: Solve for x
    x = 121,139,961,562,452.33/13,896,781.20
  6. Step 6: Final answer
    x = 8,717,123.76

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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.