Home / 13,215,018.70-19,822,528.05-9,183,940.30

Finding the Fourth Proportional to 13,215,018.70, 19,822,528.05 and 9,183,940.30

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Solution

The fourth proportional to 13,215,018.70, 19,822,528.05 and 9,183,940.30 is: 13,775,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,018.70 : 19,822,528.05 = 9,183,940.30 : x
  2. Step 2: Convert to fraction form
    13,215,018.70/19,822,528.05 = 9,183,940.30/x
  3. Step 3: Cross multiply
    13,215,018.70x = 19,822,528.05 × 9,183,940.30
  4. Step 4: Simplify right side
    13,215,018.70x = 182,048,914,206,275.44
  5. Step 5: Solve for x
    x = 182,048,914,206,275.44/13,215,018.70
  6. Step 6: Final answer
    x = 13,775,910.45

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Similar ratio
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1.5x scale

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.