Home / 85,364,685.54-128,067,399-27,857,063.70

Finding the Fourth Proportional to 85,364,685.54, 128,067,399 and 27,857,063.70

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Solution

The fourth proportional to 85,364,685.54, 128,067,399 and 27,857,063.70 is: 41,792,243.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,364,685.54 : 128,067,399 = 27,857,063.70 : x
  2. Step 2: Convert to fraction form
    85,364,685.54/128,067,399 = 27,857,063.70/x
  3. Step 3: Cross multiply
    85,364,685.54x = 128,067,399 × 27,857,063.70
  4. Step 4: Simplify right side
    85,364,685.54x = 3,567,581,691,836,316
  5. Step 5: Solve for x
    x = 3,567,581,691,836,316/85,364,685.54
  6. Step 6: Final answer
    x = 41,792,243.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.