Home / 18,386,188.93-25,371,063.07-11,320,660.18

Finding the Fourth Proportional to 18,386,188.93, 25,371,063.07 and 11,320,660.18

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Solution

The fourth proportional to 18,386,188.93, 25,371,063.07 and 11,320,660.18 is: 15,621,354.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386,188.93 : 25,371,063.07 = 11,320,660.18 : x
  2. Step 2: Convert to fraction form
    18,386,188.93/25,371,063.07 = 11,320,660.18/x
  3. Step 3: Cross multiply
    18,386,188.93x = 25,371,063.07 × 11,320,660.18
  4. Step 4: Simplify right side
    18,386,188.93x = 287,217,183,420,817.56
  5. Step 5: Solve for x
    x = 287,217,183,420,817.56/18,386,188.93
  6. Step 6: Final answer
    x = 15,621,354.95

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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.