Home / 204,456,619.80-306,686,679.30-68,142,003.30

Finding the Fourth Proportional to 204,456,619.80, 306,686,679.30 and 68,142,003.30

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Solution

The fourth proportional to 204,456,619.80, 306,686,679.30 and 68,142,003.30 is: 102,213,588.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,456,619.80 : 306,686,679.30 = 68,142,003.30 : x
  2. Step 2: Convert to fraction form
    204,456,619.80/306,686,679.30 = 68,142,003.30/x
  3. Step 3: Cross multiply
    204,456,619.80x = 306,686,679.30 × 68,142,003.30
  4. Step 4: Simplify right side
    204,456,619.80x = 20,898,244,712,926,640
  5. Step 5: Solve for x
    x = 20,898,244,712,926,640/204,456,619.80
  6. Step 6: Final answer
    x = 102,213,588.06

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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.