Home / 3,986,998.20-5,982,246.90-1,855,985.40

Finding the Fourth Proportional to 3,986,998.20, 5,982,246.90 and 1,855,985.40

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Solution

The fourth proportional to 3,986,998.20, 5,982,246.90 and 1,855,985.40 is: 2,784,792.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,998.20 : 5,982,246.90 = 1,855,985.40 : x
  2. Step 2: Convert to fraction form
    3,986,998.20/5,982,246.90 = 1,855,985.40/x
  3. Step 3: Cross multiply
    3,986,998.20x = 5,982,246.90 × 1,855,985.40
  4. Step 4: Simplify right side
    3,986,998.20x = 11,102,962,905,595.26
  5. Step 5: Solve for x
    x = 11,102,962,905,595.26/3,986,998.20
  6. Step 6: Final answer
    x = 2,784,792.56

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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.