Home / 115,731,608.14-159,709,407.15-66,172,912.48

Finding the Fourth Proportional to 115,731,608.14, 159,709,407.15 and 66,172,912.48

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Solution

The fourth proportional to 115,731,608.14, 159,709,407.15 and 66,172,912.48 is: 91,318,497.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,731,608.14 : 159,709,407.15 = 66,172,912.48 : x
  2. Step 2: Convert to fraction form
    115,731,608.14/159,709,407.15 = 66,172,912.48/x
  3. Step 3: Cross multiply
    115,731,608.14x = 159,709,407.15 × 66,172,912.48
  4. Step 4: Simplify right side
    115,731,608.14x = 10,568,436,621,569,636
  5. Step 5: Solve for x
    x = 10,568,436,621,569,636/115,731,608.14
  6. Step 6: Final answer
    x = 91,318,497.96

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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.