Home / 18,969,025.67-28,458,866.15-7,617,445.91

Finding the Fourth Proportional to 18,969,025.67, 28,458,866.15 and 7,617,445.91

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Solution

The fourth proportional to 18,969,025.67, 28,458,866.15 and 7,617,445.91 is: 11,428,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969,025.67 : 28,458,866.15 = 7,617,445.91 : x
  2. Step 2: Convert to fraction form
    18,969,025.67/28,458,866.15 = 7,617,445.91/x
  3. Step 3: Cross multiply
    18,969,025.67x = 28,458,866.15 × 7,617,445.91
  4. Step 4: Simplify right side
    18,969,025.67x = 216,783,873,519,467.72
  5. Step 5: Solve for x
    x = 216,783,873,519,467.72/18,969,025.67
  6. Step 6: Final answer
    x = 11,428,308.30

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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.