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Finding the Fourth Proportional to 8,321,969.70, 12,482,954.55 and 7,359,819.30

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Solution

The fourth proportional to 8,321,969.70, 12,482,954.55 and 7,359,819.30 is: 11,039,728.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,969.70 : 12,482,954.55 = 7,359,819.30 : x
  2. Step 2: Convert to fraction form
    8,321,969.70/12,482,954.55 = 7,359,819.30/x
  3. Step 3: Cross multiply
    8,321,969.70x = 12,482,954.55 × 7,359,819.30
  4. Step 4: Simplify right side
    8,321,969.70x = 91,872,289,818,112.81
  5. Step 5: Solve for x
    x = 91,872,289,818,112.81/8,321,969.70
  6. Step 6: Final answer
    x = 11,039,728.95

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Similar ratio
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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.