Home / 69,121,644.71-103,682,434.25-20,598,260.18

Finding the Fourth Proportional to 69,121,644.71, 103,682,434.25 and 20,598,260.18

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Solution

The fourth proportional to 69,121,644.71, 103,682,434.25 and 20,598,260.18 is: 30,897,380.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,121,644.71 : 103,682,434.25 = 20,598,260.18 : x
  2. Step 2: Convert to fraction form
    69,121,644.71/103,682,434.25 = 20,598,260.18/x
  3. Step 3: Cross multiply
    69,121,644.71x = 103,682,434.25 × 20,598,260.18
  4. Step 4: Simplify right side
    69,121,644.71x = 2,135,677,756,310,326.75
  5. Step 5: Solve for x
    x = 2,135,677,756,310,326.75/69,121,644.71
  6. Step 6: Final answer
    x = 30,897,380.49

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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.