Home / 12,279,642.90-18,415,478.58-4,080,083.10

Finding the Fourth Proportional to 12,279,642.90, 18,415,478.58 and 4,080,083.10

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Solution

The fourth proportional to 12,279,642.90, 18,415,478.58 and 4,080,083.10 is: 6,118,800.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279,642.90 : 18,415,478.58 = 4,080,083.10 : x
  2. Step 2: Convert to fraction form
    12,279,642.90/18,415,478.58 = 4,080,083.10/x
  3. Step 3: Cross multiply
    12,279,642.90x = 18,415,478.58 × 4,080,083.10
  4. Step 4: Simplify right side
    12,279,642.90x = 75,136,682,932,670
  5. Step 5: Solve for x
    x = 75,136,682,932,670/12,279,642.90
  6. Step 6: Final answer
    x = 6,118,800.32

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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.