Home / 18,191,909.40-27,287,864.10-7,403,657.10

Finding the Fourth Proportional to 18,191,909.40, 27,287,864.10 and 7,403,657.10

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Solution

The fourth proportional to 18,191,909.40, 27,287,864.10 and 7,403,657.10 is: 11,105,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,909.40 : 27,287,864.10 = 7,403,657.10 : x
  2. Step 2: Convert to fraction form
    18,191,909.40/27,287,864.10 = 7,403,657.10/x
  3. Step 3: Cross multiply
    18,191,909.40x = 27,287,864.10 × 7,403,657.10
  4. Step 4: Simplify right side
    18,191,909.40x = 202,029,988,787,800.12
  5. Step 5: Solve for x
    x = 202,029,988,787,800.12/18,191,909.40
  6. Step 6: Final answer
    x = 11,105,485.65

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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.