Home / 72,641,976.49-100,247,431.71-40,852,753.58

Finding the Fourth Proportional to 72,641,976.49, 100,247,431.71 and 40,852,753.58

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Solution

The fourth proportional to 72,641,976.49, 100,247,431.71 and 40,852,753.58 is: 56,377,645.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,641,976.49 : 100,247,431.71 = 40,852,753.58 : x
  2. Step 2: Convert to fraction form
    72,641,976.49/100,247,431.71 = 40,852,753.58/x
  3. Step 3: Cross multiply
    72,641,976.49x = 100,247,431.71 × 40,852,753.58
  4. Step 4: Simplify right side
    72,641,976.49x = 4,095,383,625,080,325
  5. Step 5: Solve for x
    x = 4,095,383,625,080,325/72,641,976.49
  6. Step 6: Final answer
    x = 56,377,645.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.