Home / 13,290,592.38-18,350,845.83-8,140,988.22

Finding the Fourth Proportional to 13,290,592.38, 18,350,845.83 and 8,140,988.22

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Solution

The fourth proportional to 13,290,592.38, 18,350,845.83 and 8,140,988.22 is: 11,240,583.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,592.38 : 18,350,845.83 = 8,140,988.22 : x
  2. Step 2: Convert to fraction form
    13,290,592.38/18,350,845.83 = 8,140,988.22/x
  3. Step 3: Cross multiply
    13,290,592.38x = 18,350,845.83 × 8,140,988.22
  4. Step 4: Simplify right side
    13,290,592.38x = 149,394,019,729,066.09
  5. Step 5: Solve for x
    x = 149,394,019,729,066.09/13,290,592.38
  6. Step 6: Final answer
    x = 11,240,583.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.