Home / 68,316,577.20-102,474,865.80-19,796,013.90

Finding the Fourth Proportional to 68,316,577.20, 102,474,865.80 and 19,796,013.90

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Solution

The fourth proportional to 68,316,577.20, 102,474,865.80 and 19,796,013.90 is: 29,694,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,316,577.20 : 102,474,865.80 = 19,796,013.90 : x
  2. Step 2: Convert to fraction form
    68,316,577.20/102,474,865.80 = 19,796,013.90/x
  3. Step 3: Cross multiply
    68,316,577.20x = 102,474,865.80 × 19,796,013.90
  4. Step 4: Simplify right side
    68,316,577.20x = 2,028,593,867,777,434.50
  5. Step 5: Solve for x
    x = 2,028,593,867,777,434.50/68,316,577.20
  6. Step 6: Final answer
    x = 29,694,020.85

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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.