Home / 13,609,538.80-20,414,308.20-11,218,054.30

Finding the Fourth Proportional to 13,609,538.80, 20,414,308.20 and 11,218,054.30

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Solution

The fourth proportional to 13,609,538.80, 20,414,308.20 and 11,218,054.30 is: 16,827,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,538.80 : 20,414,308.20 = 11,218,054.30 : x
  2. Step 2: Convert to fraction form
    13,609,538.80/20,414,308.20 = 11,218,054.30/x
  3. Step 3: Cross multiply
    13,609,538.80x = 20,414,308.20 × 11,218,054.30
  4. Step 4: Simplify right side
    13,609,538.80x = 229,008,817,884,535.28
  5. Step 5: Solve for x
    x = 229,008,817,884,535.28/13,609,538.80
  6. Step 6: Final answer
    x = 16,827,081.45

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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.