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Finding the Fourth Proportional to 68,268,348.88, 102,402,621.88 and 27,878,832.88

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Solution

The fourth proportional to 68,268,348.88, 102,402,621.88 and 27,878,832.88 is: 41,818,289.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,268,348.88 : 102,402,621.88 = 27,878,832.88 : x
  2. Step 2: Convert to fraction form
    68,268,348.88/102,402,621.88 = 27,878,832.88/x
  3. Step 3: Cross multiply
    68,268,348.88x = 102,402,621.88 × 27,878,832.88
  4. Step 4: Simplify right side
    68,268,348.88x = 2,854,865,581,866,351
  5. Step 5: Solve for x
    x = 2,854,865,581,866,351/68,268,348.88
  6. Step 6: Final answer
    x = 41,818,289.57

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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.