Home / 13,389,943.97-20,086,807.40-4,289,912.90

Finding the Fourth Proportional to 13,389,943.97, 20,086,807.40 and 4,289,912.90

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Solution

The fourth proportional to 13,389,943.97, 20,086,807.40 and 4,289,912.90 is: 6,435,475.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389,943.97 : 20,086,807.40 = 4,289,912.90 : x
  2. Step 2: Convert to fraction form
    13,389,943.97/20,086,807.40 = 4,289,912.90/x
  3. Step 3: Cross multiply
    13,389,943.97x = 20,086,807.40 × 4,289,912.90
  4. Step 4: Simplify right side
    13,389,943.97x = 86,170,654,063,191.84
  5. Step 5: Solve for x
    x = 86,170,654,063,191.84/13,389,943.97
  6. Step 6: Final answer
    x = 6,435,475.33

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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.