Home / 148,940,329.96-205,539,546.88-81,966,999.12

Finding the Fourth Proportional to 148,940,329.96, 205,539,546.88 and 81,966,999.12

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Solution

The fourth proportional to 148,940,329.96, 205,539,546.88 and 81,966,999.12 is: 113,115,499.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,940,329.96 : 205,539,546.88 = 81,966,999.12 : x
  2. Step 2: Convert to fraction form
    148,940,329.96/205,539,546.88 = 81,966,999.12/x
  3. Step 3: Cross multiply
    148,940,329.96x = 205,539,546.88 × 81,966,999.12
  4. Step 4: Simplify right side
    148,940,329.96x = 16,847,459,858,238,160
  5. Step 5: Solve for x
    x = 16,847,459,858,238,160/148,940,329.96
  6. Step 6: Final answer
    x = 113,115,499.76

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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.