Home / 84,015,086.40-126,022,629.60-73,937,390.40

Finding the Fourth Proportional to 84,015,086.40, 126,022,629.60 and 73,937,390.40

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Solution

The fourth proportional to 84,015,086.40, 126,022,629.60 and 73,937,390.40 is: 110,906,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,015,086.40 : 126,022,629.60 = 73,937,390.40 : x
  2. Step 2: Convert to fraction form
    84,015,086.40/126,022,629.60 = 73,937,390.40/x
  3. Step 3: Cross multiply
    84,015,086.40x = 126,022,629.60 × 73,937,390.40
  4. Step 4: Simplify right side
    84,015,086.40x = 9,317,784,363,969,796
  5. Step 5: Solve for x
    x = 9,317,784,363,969,796/84,015,086.40
  6. Step 6: Final answer
    x = 110,906,085.60

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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.