Home / 20,829,918.57-31,229,744.22-8,702,850.18

Finding the Fourth Proportional to 20,829,918.57, 31,229,744.22 and 8,702,850.18

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Solution

The fourth proportional to 20,829,918.57, 31,229,744.22 and 8,702,850.18 is: 13,047,952.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829,918.57 : 31,229,744.22 = 8,702,850.18 : x
  2. Step 2: Convert to fraction form
    20,829,918.57/31,229,744.22 = 8,702,850.18/x
  3. Step 3: Cross multiply
    20,829,918.57x = 31,229,744.22 × 8,702,850.18
  4. Step 4: Simplify right side
    20,829,918.57x = 271,787,785,106,380.94
  5. Step 5: Solve for x
    x = 271,787,785,106,380.94/20,829,918.57
  6. Step 6: Final answer
    x = 13,047,952.36

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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.