Home / 8,738,419.20-13,107,628.80-7,245,427.20

Finding the Fourth Proportional to 8,738,419.20, 13,107,628.80 and 7,245,427.20

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Solution

The fourth proportional to 8,738,419.20, 13,107,628.80 and 7,245,427.20 is: 10,868,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738,419.20 : 13,107,628.80 = 7,245,427.20 : x
  2. Step 2: Convert to fraction form
    8,738,419.20/13,107,628.80 = 7,245,427.20/x
  3. Step 3: Cross multiply
    8,738,419.20x = 13,107,628.80 × 7,245,427.20
  4. Step 4: Simplify right side
    8,738,419.20x = 94,970,370,235,023.38
  5. Step 5: Solve for x
    x = 94,970,370,235,023.38/8,738,419.20
  6. Step 6: Final answer
    x = 10,868,140.80

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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.