Home / 21,651,619.20-29,879,234.40-11,993,827.20

Finding the Fourth Proportional to 21,651,619.20, 29,879,234.40 and 11,993,827.20

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Solution

The fourth proportional to 21,651,619.20, 29,879,234.40 and 11,993,827.20 is: 16,551,481.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651,619.20 : 29,879,234.40 = 11,993,827.20 : x
  2. Step 2: Convert to fraction form
    21,651,619.20/29,879,234.40 = 11,993,827.20/x
  3. Step 3: Cross multiply
    21,651,619.20x = 29,879,234.40 × 11,993,827.20
  4. Step 4: Simplify right side
    21,651,619.20x = 358,366,374,261,895.62
  5. Step 5: Solve for x
    x = 358,366,374,261,895.62/21,651,619.20
  6. Step 6: Final answer
    x = 16,551,481.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.