Home / 78,724,043.52-108,660,788.26-45,694,933.60

Finding the Fourth Proportional to 78,724,043.52, 108,660,788.26 and 45,694,933.60

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Solution

The fourth proportional to 78,724,043.52, 108,660,788.26 and 45,694,933.60 is: 63,071,550.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,724,043.52 : 108,660,788.26 = 45,694,933.60 : x
  2. Step 2: Convert to fraction form
    78,724,043.52/108,660,788.26 = 45,694,933.60/x
  3. Step 3: Cross multiply
    78,724,043.52x = 108,660,788.26 × 45,694,933.60
  4. Step 4: Simplify right side
    78,724,043.52x = 4,965,247,504,539,472
  5. Step 5: Solve for x
    x = 4,965,247,504,539,472/78,724,043.52
  6. Step 6: Final answer
    x = 63,071,550.73

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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.