Home / 3,906,221.81-5,390,527.78-2,163,885.84

Finding the Fourth Proportional to 3,906,221.81, 5,390,527.78 and 2,163,885.84

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Solution

The fourth proportional to 3,906,221.81, 5,390,527.78 and 2,163,885.84 is: 2,986,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906,221.81 : 5,390,527.78 = 2,163,885.84 : x
  2. Step 2: Convert to fraction form
    3,906,221.81/5,390,527.78 = 2,163,885.84/x
  3. Step 3: Cross multiply
    3,906,221.81x = 5,390,527.78 × 2,163,885.84
  4. Step 4: Simplify right side
    3,906,221.81x = 11,664,486,723,801.63
  5. Step 5: Solve for x
    x = 11,664,486,723,801.63/3,906,221.81
  6. Step 6: Final answer
    x = 2,986,130.15

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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.