Home / 678,729,385,216.30-1,016,941,979,288.10-409,552,786,223.50

Finding the Fourth Proportional to 678,729,385,216.30, 1,016,941,979,288.10 and 409,552,786,223.50

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Solution

The fourth proportional to 678,729,385,216.30, 1,016,941,979,288.10 and 409,552,786,223.50 is: 613,633,990,389.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,729,385,216.30 : 1,016,941,979,288.10 = 409,552,786,223.50 : x
  2. Step 2: Convert to fraction form
    678,729,385,216.30/1,016,941,979,288.10 = 409,552,786,223.50/x
  3. Step 3: Cross multiply
    678,729,385,216.30x = 1,016,941,979,288.10 × 409,552,786,223.50
  4. Step 4: Simplify right side
    678,729,385,216.30x = 416,491,421,045,082,204,143,616
  5. Step 5: Solve for x
    x = 416,491,421,045,082,204,143,616/678,729,385,216.30
  6. Step 6: Final answer
    x = 613,633,990,389.78

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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.