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Finding the Fourth Proportional to 68,359,751.80, 102,586,866.90 and 49,206,880.60

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Solution

The fourth proportional to 68,359,751.80, 102,586,866.90 and 49,206,880.60 is: 73,844,324.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,359,751.80 : 102,586,866.90 = 49,206,880.60 : x
  2. Step 2: Convert to fraction form
    68,359,751.80/102,586,866.90 = 49,206,880.60/x
  3. Step 3: Cross multiply
    68,359,751.80x = 102,586,866.90 × 49,206,880.60
  4. Step 4: Simplify right side
    68,359,751.80x = 5,047,979,710,676,393
  5. Step 5: Solve for x
    x = 5,047,979,710,676,393/68,359,751.80
  6. Step 6: Final answer
    x = 73,844,324.73

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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.