Home / 21,629,900.40-29,847,371.12-12,807,769.01

Finding the Fourth Proportional to 21,629,900.40, 29,847,371.12 and 12,807,769.01

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Solution

The fourth proportional to 21,629,900.40, 29,847,371.12 and 12,807,769.01 is: 17,673,601.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629,900.40 : 29,847,371.12 = 12,807,769.01 : x
  2. Step 2: Convert to fraction form
    21,629,900.40/29,847,371.12 = 12,807,769.01/x
  3. Step 3: Cross multiply
    21,629,900.40x = 29,847,371.12 × 12,807,769.01
  4. Step 4: Simplify right side
    21,629,900.40x = 382,278,234,647,429.31
  5. Step 5: Solve for x
    x = 382,278,234,647,429.31/21,629,900.40
  6. Step 6: Final answer
    x = 17,673,601.25

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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.