Home / 140,631,631.92-194,053,247.79-81,095,126.97

Finding the Fourth Proportional to 140,631,631.92, 194,053,247.79 and 81,095,126.97

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Solution

The fourth proportional to 140,631,631.92, 194,053,247.79 and 81,095,126.97 is: 111,900,662.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,631,631.92 : 194,053,247.79 = 81,095,126.97 : x
  2. Step 2: Convert to fraction form
    140,631,631.92/194,053,247.79 = 81,095,126.97/x
  3. Step 3: Cross multiply
    140,631,631.92x = 194,053,247.79 × 81,095,126.97
  4. Step 4: Simplify right side
    140,631,631.92x = 15,736,772,768,470,920
  5. Step 5: Solve for x
    x = 15,736,772,768,470,920/140,631,631.92
  6. Step 6: Final answer
    x = 111,900,662.42

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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.