Home / 78,168,111.92-117,253,009.78-23,581,170.38

Finding the Fourth Proportional to 78,168,111.92, 117,253,009.78 and 23,581,170.38

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Solution

The fourth proportional to 78,168,111.92, 117,253,009.78 and 23,581,170.38 is: 35,372,009.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,168,111.92 : 117,253,009.78 = 23,581,170.38 : x
  2. Step 2: Convert to fraction form
    78,168,111.92/117,253,009.78 = 23,581,170.38/x
  3. Step 3: Cross multiply
    78,168,111.92x = 117,253,009.78 × 23,581,170.38
  4. Step 4: Simplify right side
    78,168,111.92x = 2,764,963,201,189,986
  5. Step 5: Solve for x
    x = 2,764,963,201,189,986/78,168,111.92
  6. Step 6: Final answer
    x = 35,372,009.55

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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.