Home / 115,731,610.14-159,709,409.91-66,172,914.48

Finding the Fourth Proportional to 115,731,610.14, 159,709,409.91 and 66,172,914.48

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Solution

The fourth proportional to 115,731,610.14, 159,709,409.91 and 66,172,914.48 is: 91,318,500.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,731,610.14 : 159,709,409.91 = 66,172,914.48 : x
  2. Step 2: Convert to fraction form
    115,731,610.14/159,709,409.91 = 66,172,914.48/x
  3. Step 3: Cross multiply
    115,731,610.14x = 159,709,409.91 × 66,172,914.48
  4. Step 4: Simplify right side
    115,731,610.14x = 10,568,437,123,625,694
  5. Step 5: Solve for x
    x = 10,568,437,123,625,694/115,731,610.14
  6. Step 6: Final answer
    x = 91,318,500.72

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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.