Home / 66,936,842.96-99,954,510.70-54,665,150.50

Finding the Fourth Proportional to 66,936,842.96, 99,954,510.70 and 54,665,150.50

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Solution

The fourth proportional to 66,936,842.96, 99,954,510.70 and 54,665,150.50 is: 81,629,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,936,842.96 : 99,954,510.70 = 54,665,150.50 : x
  2. Step 2: Convert to fraction form
    66,936,842.96/99,954,510.70 = 54,665,150.50/x
  3. Step 3: Cross multiply
    66,936,842.96x = 99,954,510.70 × 54,665,150.50
  4. Step 4: Simplify right side
    66,936,842.96x = 5,464,028,370,569,361
  5. Step 5: Solve for x
    x = 5,464,028,370,569,361/66,936,842.96
  6. Step 6: Final answer
    x = 81,629,609.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.