Home / 7,191,214.60-9,923,809.06-3,928,028.08

Finding the Fourth Proportional to 7,191,214.60, 9,923,809.06 and 3,928,028.08

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Solution

The fourth proportional to 7,191,214.60, 9,923,809.06 and 3,928,028.08 is: 5,420,642.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191,214.60 : 9,923,809.06 = 3,928,028.08 : x
  2. Step 2: Convert to fraction form
    7,191,214.60/9,923,809.06 = 3,928,028.08/x
  3. Step 3: Cross multiply
    7,191,214.60x = 9,923,809.06 × 3,928,028.08
  4. Step 4: Simplify right side
    7,191,214.60x = 38,981,000,648,238.41
  5. Step 5: Solve for x
    x = 38,981,000,648,238.41/7,191,214.60
  6. Step 6: Final answer
    x = 5,420,642.11

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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.