Home / 18,885,938.40-28,314,910.80-8,094,405.60

Finding the Fourth Proportional to 18,885,938.40, 28,314,910.80 and 8,094,405.60

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Solution

The fourth proportional to 18,885,938.40, 28,314,910.80 and 8,094,405.60 is: 12,135,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885,938.40 : 28,314,910.80 = 8,094,405.60 : x
  2. Step 2: Convert to fraction form
    18,885,938.40/28,314,910.80 = 8,094,405.60/x
  3. Step 3: Cross multiply
    18,885,938.40x = 28,314,910.80 × 8,094,405.60
  4. Step 4: Simplify right side
    18,885,938.40x = 229,192,372,543,020.47
  5. Step 5: Solve for x
    x = 229,192,372,543,020.47/18,885,938.40
  6. Step 6: Final answer
    x = 12,135,609.45

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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.