Home / 13,192,038.38-18,204,572.82-7,311,421.97

Finding the Fourth Proportional to 13,192,038.38, 18,204,572.82 and 7,311,421.97

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Solution

The fourth proportional to 13,192,038.38, 18,204,572.82 and 7,311,421.97 is: 10,089,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,192,038.38 : 18,204,572.82 = 7,311,421.97 : x
  2. Step 2: Convert to fraction form
    13,192,038.38/18,204,572.82 = 7,311,421.97/x
  3. Step 3: Cross multiply
    13,192,038.38x = 18,204,572.82 × 7,311,421.97
  4. Step 4: Simplify right side
    13,192,038.38x = 133,101,313,716,124.30
  5. Step 5: Solve for x
    x = 133,101,313,716,124.30/13,192,038.38
  6. Step 6: Final answer
    x = 10,089,518.38

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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.