Home / 13,269,131.38-18,304,378.32-9,131,980.04

Finding the Fourth Proportional to 13,269,131.38, 18,304,378.32 and 9,131,980.04

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Solution

The fourth proportional to 13,269,131.38, 18,304,378.32 and 9,131,980.04 is: 12,597,299.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269,131.38 : 18,304,378.32 = 9,131,980.04 : x
  2. Step 2: Convert to fraction form
    13,269,131.38/18,304,378.32 = 9,131,980.04/x
  3. Step 3: Cross multiply
    13,269,131.38x = 18,304,378.32 × 9,131,980.04
  4. Step 4: Simplify right side
    13,269,131.38x = 167,155,217,462,848.72
  5. Step 5: Solve for x
    x = 167,155,217,462,848.72/13,269,131.38
  6. Step 6: Final answer
    x = 12,597,299.15

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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.