Home / 78,190,243.28-107,915,480.52-43,394,110.16

Finding the Fourth Proportional to 78,190,243.28, 107,915,480.52 and 43,394,110.16

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Solution

The fourth proportional to 78,190,243.28, 107,915,480.52 and 43,394,110.16 is: 59,891,056.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,190,243.28 : 107,915,480.52 = 43,394,110.16 : x
  2. Step 2: Convert to fraction form
    78,190,243.28/107,915,480.52 = 43,394,110.16/x
  3. Step 3: Cross multiply
    78,190,243.28x = 107,915,480.52 × 43,394,110.16
  4. Step 4: Simplify right side
    78,190,243.28x = 4,682,896,249,654,214
  5. Step 5: Solve for x
    x = 4,682,896,249,654,214/78,190,243.28
  6. Step 6: Final answer
    x = 59,891,056.14

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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.