Home / 7,191,211.60-9,923,804.92-3,928,025.08

Finding the Fourth Proportional to 7,191,211.60, 9,923,804.92 and 3,928,025.08

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Solution

The fourth proportional to 7,191,211.60, 9,923,804.92 and 3,928,025.08 is: 5,420,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191,211.60 : 9,923,804.92 = 3,928,025.08 : x
  2. Step 2: Convert to fraction form
    7,191,211.60/9,923,804.92 = 3,928,025.08/x
  3. Step 3: Cross multiply
    7,191,211.60x = 9,923,804.92 × 3,928,025.08
  4. Step 4: Simplify right side
    7,191,211.60x = 38,980,954,614,787.39
  5. Step 5: Solve for x
    x = 38,980,954,614,787.39/7,191,211.60
  6. Step 6: Final answer
    x = 5,420,637.97

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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.