Home / 148,940,342.56-205,539,564.24-81,967,011.64

Finding the Fourth Proportional to 148,940,342.56, 205,539,564.24 and 81,967,011.64

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Solution

The fourth proportional to 148,940,342.56, 205,539,564.24 and 81,967,011.64 is: 113,115,517.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,940,342.56 : 205,539,564.24 = 81,967,011.64 : x
  2. Step 2: Convert to fraction form
    148,940,342.56/205,539,564.24 = 81,967,011.64/x
  3. Step 3: Cross multiply
    148,940,342.56x = 205,539,564.24 × 81,967,011.64
  4. Step 4: Simplify right side
    148,940,342.56x = 16,847,463,854,540,608
  5. Step 5: Solve for x
    x = 16,847,463,854,540,608/148,940,342.56
  6. Step 6: Final answer
    x = 113,115,517.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.