Home / 81,095,142.40-121,632,568.89-26,503,160.92

Finding the Fourth Proportional to 81,095,142.40, 121,632,568.89 and 26,503,160.92

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Solution

The fourth proportional to 81,095,142.40, 121,632,568.89 and 26,503,160.92 is: 39,751,425.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,095,142.40 : 121,632,568.89 = 26,503,160.92 : x
  2. Step 2: Convert to fraction form
    81,095,142.40/121,632,568.89 = 26,503,160.92/x
  3. Step 3: Cross multiply
    81,095,142.40x = 121,632,568.89 × 26,503,160.92
  4. Step 4: Simplify right side
    81,095,142.40x = 3,223,647,546,404,656
  5. Step 5: Solve for x
    x = 3,223,647,546,404,656/81,095,142.40
  6. Step 6: Final answer
    x = 39,751,425.93

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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.