Home / 18,677,939.40-28,016,909.10-7,314,611.40

Finding the Fourth Proportional to 18,677,939.40, 28,016,909.10 and 7,314,611.40

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Solution

The fourth proportional to 18,677,939.40, 28,016,909.10 and 7,314,611.40 is: 10,971,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677,939.40 : 28,016,909.10 = 7,314,611.40 : x
  2. Step 2: Convert to fraction form
    18,677,939.40/28,016,909.10 = 7,314,611.40/x
  3. Step 3: Cross multiply
    18,677,939.40x = 28,016,909.10 × 7,314,611.40
  4. Step 4: Simplify right side
    18,677,939.40x = 204,932,802,695,623.75
  5. Step 5: Solve for x
    x = 204,932,802,695,623.75/18,677,939.40
  6. Step 6: Final answer
    x = 10,971,917.10

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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.