Home / 78,054,439.92-107,713,701.33-43,247,003.28

Finding the Fourth Proportional to 78,054,439.92, 107,713,701.33 and 43,247,003.28

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Solution

The fourth proportional to 78,054,439.92, 107,713,701.33 and 43,247,003.28 is: 59,680,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,054,439.92 : 107,713,701.33 = 43,247,003.28 : x
  2. Step 2: Convert to fraction form
    78,054,439.92/107,713,701.33 = 43,247,003.28/x
  3. Step 3: Cross multiply
    78,054,439.92x = 107,713,701.33 × 43,247,003.28
  4. Step 4: Simplify right side
    78,054,439.92x = 4,658,294,794,719,450
  5. Step 5: Solve for x
    x = 4,658,294,794,719,450/78,054,439.92
  6. Step 6: Final answer
    x = 59,680,074.57

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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.