Home / 5,521,954.60-8,278,007.10-2,155,378.60

Finding the Fourth Proportional to 5,521,954.60, 8,278,007.10 and 2,155,378.60

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Solution

The fourth proportional to 5,521,954.60, 8,278,007.10 and 2,155,378.60 is: 3,231,145.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521,954.60 : 8,278,007.10 = 2,155,378.60 : x
  2. Step 2: Convert to fraction form
    5,521,954.60/8,278,007.10 = 2,155,378.60/x
  3. Step 3: Cross multiply
    5,521,954.60x = 8,278,007.10 × 2,155,378.60
  4. Step 4: Simplify right side
    5,521,954.60x = 17,842,239,353,988.06
  5. Step 5: Solve for x
    x = 17,842,239,353,988.06/5,521,954.60
  6. Step 6: Final answer
    x = 3,231,145.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.