Home / 81,660,181.80-122,490,272.70-36,221,976.30

Finding the Fourth Proportional to 81,660,181.80, 122,490,272.70 and 36,221,976.30

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Solution

The fourth proportional to 81,660,181.80, 122,490,272.70 and 36,221,976.30 is: 54,332,964.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,660,181.80 : 122,490,272.70 = 36,221,976.30 : x
  2. Step 2: Convert to fraction form
    81,660,181.80/122,490,272.70 = 36,221,976.30/x
  3. Step 3: Cross multiply
    81,660,181.80x = 122,490,272.70 × 36,221,976.30
  4. Step 4: Simplify right side
    81,660,181.80x = 4,436,839,754,719,937
  5. Step 5: Solve for x
    x = 4,436,839,754,719,937/81,660,181.80
  6. Step 6: Final answer
    x = 54,332,964.45

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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.