Home / 9,628,958.76-13,288,123.68-5,218,825.20

Finding the Fourth Proportional to 9,628,958.76, 13,288,123.68 and 5,218,825.20

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Solution

The fourth proportional to 9,628,958.76, 13,288,123.68 and 5,218,825.20 is: 7,202,065.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,628,958.76 : 13,288,123.68 = 5,218,825.20 : x
  2. Step 2: Convert to fraction form
    9,628,958.76/13,288,123.68 = 5,218,825.20/x
  3. Step 3: Cross multiply
    9,628,958.76x = 13,288,123.68 × 5,218,825.20
  4. Step 4: Simplify right side
    9,628,958.76x = 69,348,394,721,900.73
  5. Step 5: Solve for x
    x = 69,348,394,721,900.73/9,628,958.76
  6. Step 6: Final answer
    x = 7,202,065.82

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Double scale
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1.5x scale

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.