Home / 18,677,999.20-28,016,998.80-6,561,144.40

Finding the Fourth Proportional to 18,677,999.20, 28,016,998.80 and 6,561,144.40

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Solution

The fourth proportional to 18,677,999.20, 28,016,998.80 and 6,561,144.40 is: 9,841,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677,999.20 : 28,016,998.80 = 6,561,144.40 : x
  2. Step 2: Convert to fraction form
    18,677,999.20/28,016,998.80 = 6,561,144.40/x
  3. Step 3: Cross multiply
    18,677,999.20x = 28,016,998.80 × 6,561,144.40
  4. Step 4: Simplify right side
    18,677,999.20x = 183,823,574,781,426.75
  5. Step 5: Solve for x
    x = 183,823,574,781,426.75/18,677,999.20
  6. Step 6: Final answer
    x = 9,841,716.60

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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.