Home / 12,187,778.90-18,284,059.65-4,511,490.74

Finding the Fourth Proportional to 12,187,778.90, 18,284,059.65 and 4,511,490.74

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Solution

The fourth proportional to 12,187,778.90, 18,284,059.65 and 4,511,490.74 is: 6,768,121.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187,778.90 : 18,284,059.65 = 4,511,490.74 : x
  2. Step 2: Convert to fraction form
    12,187,778.90/18,284,059.65 = 4,511,490.74/x
  3. Step 3: Cross multiply
    12,187,778.90x = 18,284,059.65 × 4,511,490.74
  4. Step 4: Simplify right side
    12,187,778.90x = 82,488,365,800,582.64
  5. Step 5: Solve for x
    x = 82,488,365,800,582.64/12,187,778.90
  6. Step 6: Final answer
    x = 6,768,121.29

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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.