Home / 8,185,722.30-12,278,625.98-2,120,029.20

Finding the Fourth Proportional to 8,185,722.30, 12,278,625.98 and 2,120,029.20

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Solution

The fourth proportional to 8,185,722.30, 12,278,625.98 and 2,120,029.20 is: 3,180,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185,722.30 : 12,278,625.98 = 2,120,029.20 : x
  2. Step 2: Convert to fraction form
    8,185,722.30/12,278,625.98 = 2,120,029.20/x
  3. Step 3: Cross multiply
    8,185,722.30x = 12,278,625.98 × 2,120,029.20
  4. Step 4: Simplify right side
    8,185,722.30x = 26,031,045,602,878.47
  5. Step 5: Solve for x
    x = 26,031,045,602,878.47/8,185,722.30
  6. Step 6: Final answer
    x = 3,180,054.81

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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.