Home / 68,128,293.20-102,192,439.80-49,833,436.78

Finding the Fourth Proportional to 68,128,293.20, 102,192,439.80 and 49,833,436.78

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Solution

The fourth proportional to 68,128,293.20, 102,192,439.80 and 49,833,436.78 is: 74,750,155.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,128,293.20 : 102,192,439.80 = 49,833,436.78 : x
  2. Step 2: Convert to fraction form
    68,128,293.20/102,192,439.80 = 49,833,436.78/x
  3. Step 3: Cross multiply
    68,128,293.20x = 102,192,439.80 × 49,833,436.78
  4. Step 4: Simplify right side
    68,128,293.20x = 5,092,600,487,656,293
  5. Step 5: Solve for x
    x = 5,092,600,487,656,293/68,128,293.20
  6. Step 6: Final answer
    x = 74,750,155.16

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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.