Home / 18,191,685.40-27,287,528.10-7,403,433.10

Finding the Fourth Proportional to 18,191,685.40, 27,287,528.10 and 7,403,433.10

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Solution

The fourth proportional to 18,191,685.40, 27,287,528.10 and 7,403,433.10 is: 11,105,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,685.40 : 27,287,528.10 = 7,403,433.10 : x
  2. Step 2: Convert to fraction form
    18,191,685.40/27,287,528.10 = 7,403,433.10/x
  3. Step 3: Cross multiply
    18,191,685.40x = 27,287,528.10 × 7,403,433.10
  4. Step 4: Simplify right side
    18,191,685.40x = 202,021,388,752,720.12
  5. Step 5: Solve for x
    x = 202,021,388,752,720.12/18,191,685.40
  6. Step 6: Final answer
    x = 11,105,149.65

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Double scale
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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.