Home / 78,284,614.89-108,033,020.09-43,477,304.31

Finding the Fourth Proportional to 78,284,614.89, 108,033,020.09 and 43,477,304.31

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Solution

The fourth proportional to 78,284,614.89, 108,033,020.09 and 43,477,304.31 is: 59,998,819.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,284,614.89 : 108,033,020.09 = 43,477,304.31 : x
  2. Step 2: Convert to fraction form
    78,284,614.89/108,033,020.09 = 43,477,304.31/x
  3. Step 3: Cross multiply
    78,284,614.89x = 108,033,020.09 × 43,477,304.31
  4. Step 4: Simplify right side
    78,284,614.89x = 4,696,984,489,981,274
  5. Step 5: Solve for x
    x = 4,696,984,489,981,274/78,284,614.89
  6. Step 6: Final answer
    x = 59,998,819.65

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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.