Home / 121,616,112.56-182,715,194.44-77,982,359.45

Finding the Fourth Proportional to 121,616,112.56, 182,715,194.44 and 77,982,359.45

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Solution

The fourth proportional to 121,616,112.56, 182,715,194.44 and 77,982,359.45 is: 117,160,149.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,616,112.56 : 182,715,194.44 = 77,982,359.45 : x
  2. Step 2: Convert to fraction form
    121,616,112.56/182,715,194.44 = 77,982,359.45/x
  3. Step 3: Cross multiply
    121,616,112.56x = 182,715,194.44 × 77,982,359.45
  4. Step 4: Simplify right side
    121,616,112.56x = 14,248,561,968,980,622
  5. Step 5: Solve for x
    x = 14,248,561,968,980,622/121,616,112.56
  6. Step 6: Final answer
    x = 117,160,149.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.