Home / 137,657,371.28-190,007,287.80-89,979,551.60

Finding the Fourth Proportional to 137,657,371.28, 190,007,287.80 and 89,979,551.60

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Solution

The fourth proportional to 137,657,371.28, 190,007,287.80 and 89,979,551.60 is: 124,198,002.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,657,371.28 : 190,007,287.80 = 89,979,551.60 : x
  2. Step 2: Convert to fraction form
    137,657,371.28/190,007,287.80 = 89,979,551.60/x
  3. Step 3: Cross multiply
    137,657,371.28x = 190,007,287.80 × 89,979,551.60
  4. Step 4: Simplify right side
    137,657,371.28x = 17,096,770,556,976,150
  5. Step 5: Solve for x
    x = 17,096,770,556,976,150/137,657,371.28
  6. Step 6: Final answer
    x = 124,198,002.61

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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.