Home / 13,269,123.02-18,304,366.79-9,131,971.64

Finding the Fourth Proportional to 13,269,123.02, 18,304,366.79 and 9,131,971.64

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Solution

The fourth proportional to 13,269,123.02, 18,304,366.79 and 9,131,971.64 is: 12,597,287.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269,123.02 : 18,304,366.79 = 9,131,971.64 : x
  2. Step 2: Convert to fraction form
    13,269,123.02/18,304,366.79 = 9,131,971.64/x
  3. Step 3: Cross multiply
    13,269,123.02x = 18,304,366.79 × 9,131,971.64
  4. Step 4: Simplify right side
    13,269,123.02x = 167,154,958,345,745.94
  5. Step 5: Solve for x
    x = 167,154,958,345,745.94/13,269,123.02
  6. Step 6: Final answer
    x = 12,597,287.56

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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.