Home / 141,728,968.32-195,585,979.02-76,538,872.32

Finding the Fourth Proportional to 141,728,968.32, 195,585,979.02 and 76,538,872.32

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Solution

The fourth proportional to 141,728,968.32, 195,585,979.02 and 76,538,872.32 is: 105,623,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,728,968.32 : 195,585,979.02 = 76,538,872.32 : x
  2. Step 2: Convert to fraction form
    141,728,968.32/195,585,979.02 = 76,538,872.32/x
  3. Step 3: Cross multiply
    141,728,968.32x = 195,585,979.02 × 76,538,872.32
  4. Step 4: Simplify right side
    141,728,968.32x = 14,969,930,275,793,978
  5. Step 5: Solve for x
    x = 14,969,930,275,793,978/141,728,968.32
  6. Step 6: Final answer
    x = 105,623,645.28

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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.