Home / 12,876,823.40-19,315,235.10-8,621,796.20

Finding the Fourth Proportional to 12,876,823.40, 19,315,235.10 and 8,621,796.20

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Solution

The fourth proportional to 12,876,823.40, 19,315,235.10 and 8,621,796.20 is: 12,932,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876,823.40 : 19,315,235.10 = 8,621,796.20 : x
  2. Step 2: Convert to fraction form
    12,876,823.40/19,315,235.10 = 8,621,796.20/x
  3. Step 3: Cross multiply
    12,876,823.40x = 19,315,235.10 × 8,621,796.20
  4. Step 4: Simplify right side
    12,876,823.40x = 166,532,020,587,286.62
  5. Step 5: Solve for x
    x = 166,532,020,587,286.62/12,876,823.40
  6. Step 6: Final answer
    x = 12,932,694.30

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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.