Home / 8,600,810.72-12,900,218.16-3,209,649.44

Finding the Fourth Proportional to 8,600,810.72, 12,900,218.16 and 3,209,649.44

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Solution

The fourth proportional to 8,600,810.72, 12,900,218.16 and 3,209,649.44 is: 4,814,101.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600,810.72 : 12,900,218.16 = 3,209,649.44 : x
  2. Step 2: Convert to fraction form
    8,600,810.72/12,900,218.16 = 3,209,649.44/x
  3. Step 3: Cross multiply
    8,600,810.72x = 12,900,218.16 × 3,209,649.44
  4. Step 4: Simplify right side
    8,600,810.72x = 41,405,177,993,121.83
  5. Step 5: Solve for x
    x = 41,405,177,993,121.83/8,600,810.72
  6. Step 6: Final answer
    x = 4,814,101.76

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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.