Home / 144,680,422.80-199,659,220.56-78,601,180.08

Finding the Fourth Proportional to 144,680,422.80, 199,659,220.56 and 78,601,180.08

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Solution

The fourth proportional to 144,680,422.80, 199,659,220.56 and 78,601,180.08 is: 108,469,757.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,680,422.80 : 199,659,220.56 = 78,601,180.08 : x
  2. Step 2: Convert to fraction form
    144,680,422.80/199,659,220.56 = 78,601,180.08/x
  3. Step 3: Cross multiply
    144,680,422.80x = 199,659,220.56 × 78,601,180.08
  4. Step 4: Simplify right side
    144,680,422.80x = 15,693,450,349,868,998
  5. Step 5: Solve for x
    x = 15,693,450,349,868,998/144,680,422.80
  6. Step 6: Final answer
    x = 108,469,757.32

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1.5x scale

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.