Home / 3,918,912.57-5,407,800.75-2,199,700.89

Finding the Fourth Proportional to 3,918,912.57, 5,407,800.75 and 2,199,700.89

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Solution

The fourth proportional to 3,918,912.57, 5,407,800.75 and 2,199,700.89 is: 3,035,419.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,912.57 : 5,407,800.75 = 2,199,700.89 : x
  2. Step 2: Convert to fraction form
    3,918,912.57/5,407,800.75 = 2,199,700.89/x
  3. Step 3: Cross multiply
    3,918,912.57x = 5,407,800.75 × 2,199,700.89
  4. Step 4: Simplify right side
    3,918,912.57x = 11,895,544,122,717.67
  5. Step 5: Solve for x
    x = 11,895,544,122,717.67/3,918,912.57
  6. Step 6: Final answer
    x = 3,035,419.62

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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.