Home / 71,216,644.43-106,810,019.62-20,086,705.82

Finding the Fourth Proportional to 71,216,644.43, 106,810,019.62 and 20,086,705.82

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Solution

The fourth proportional to 71,216,644.43, 106,810,019.62 and 20,086,705.82 is: 30,125,842.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,216,644.43 : 106,810,019.62 = 20,086,705.82 : x
  2. Step 2: Convert to fraction form
    71,216,644.43/106,810,019.62 = 20,086,705.82/x
  3. Step 3: Cross multiply
    71,216,644.43x = 106,810,019.62 × 20,086,705.82
  4. Step 4: Simplify right side
    71,216,644.43x = 2,145,461,442,952,176.75
  5. Step 5: Solve for x
    x = 2,145,461,442,952,176.75/71,216,644.43
  6. Step 6: Final answer
    x = 30,125,842.91

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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.