Home / 5,388,009.20-8,082,013.80-1,398,921.20

Finding the Fourth Proportional to 5,388,009.20, 8,082,013.80 and 1,398,921.20

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Solution

The fourth proportional to 5,388,009.20, 8,082,013.80 and 1,398,921.20 is: 2,098,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388,009.20 : 8,082,013.80 = 1,398,921.20 : x
  2. Step 2: Convert to fraction form
    5,388,009.20/8,082,013.80 = 1,398,921.20/x
  3. Step 3: Cross multiply
    5,388,009.20x = 8,082,013.80 × 1,398,921.20
  4. Step 4: Simplify right side
    5,388,009.20x = 11,306,100,443,512.56
  5. Step 5: Solve for x
    x = 11,306,100,443,512.56/5,388,009.20
  6. Step 6: Final answer
    x = 2,098,381.80

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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.