Home / 20,776,520.80-31,165,315.80-9,844,145.20

Finding the Fourth Proportional to 20,776,520.80, 31,165,315.80 and 9,844,145.20

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Solution

The fourth proportional to 20,776,520.80, 31,165,315.80 and 9,844,145.20 is: 14,766,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,520.80 : 31,165,315.80 = 9,844,145.20 : x
  2. Step 2: Convert to fraction form
    20,776,520.80/31,165,315.80 = 9,844,145.20/x
  3. Step 3: Cross multiply
    20,776,520.80x = 31,165,315.80 × 9,844,145.20
  4. Step 4: Simplify right side
    20,776,520.80x = 306,795,893,939,054.12
  5. Step 5: Solve for x
    x = 306,795,893,939,054.12/20,776,520.80
  6. Step 6: Final answer
    x = 14,766,471.10

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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.