Home / 13,081,747.95-18,052,812.41-7,281,899.78

Finding the Fourth Proportional to 13,081,747.95, 18,052,812.41 and 7,281,899.78

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Solution

The fourth proportional to 13,081,747.95, 18,052,812.41 and 7,281,899.78 is: 10,049,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081,747.95 : 18,052,812.41 = 7,281,899.78 : x
  2. Step 2: Convert to fraction form
    13,081,747.95/18,052,812.41 = 7,281,899.78/x
  3. Step 3: Cross multiply
    13,081,747.95x = 18,052,812.41 × 7,281,899.78
  4. Step 4: Simplify right side
    13,081,747.95x = 131,458,770,590,086.72
  5. Step 5: Solve for x
    x = 131,458,770,590,086.72/13,081,747.95
  6. Step 6: Final answer
    x = 10,049,021.82

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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.