Home / 6,986,581.60-9,641,383.84-3,930,788.56

Finding the Fourth Proportional to 6,986,581.60, 9,641,383.84 and 3,930,788.56

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Solution

The fourth proportional to 6,986,581.60, 9,641,383.84 and 3,930,788.56 is: 5,424,432.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986,581.60 : 9,641,383.84 = 3,930,788.56 : x
  2. Step 2: Convert to fraction form
    6,986,581.60/9,641,383.84 = 3,930,788.56/x
  3. Step 3: Cross multiply
    6,986,581.60x = 9,641,383.84 × 3,930,788.56
  4. Step 4: Simplify right side
    6,986,581.60x = 37,898,241,300,840.87
  5. Step 5: Solve for x
    x = 37,898,241,300,840.87/6,986,581.60
  6. Step 6: Final answer
    x = 5,424,432.64

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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.