Home / 20,582,321.80-28,405,348.50-11,417,917

Finding the Fourth Proportional to 20,582,321.80, 28,405,348.50 and 11,417,917

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Solution

The fourth proportional to 20,582,321.80, 28,405,348.50 and 11,417,917 is: 15,757,693.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582,321.80 : 28,405,348.50 = 11,417,917 : x
  2. Step 2: Convert to fraction form
    20,582,321.80/28,405,348.50 = 11,417,917/x
  3. Step 3: Cross multiply
    20,582,321.80x = 28,405,348.50 × 11,417,917
  4. Step 4: Simplify right side
    20,582,321.80x = 324,329,911,529,074.50
  5. Step 5: Solve for x
    x = 324,329,911,529,074.50/20,582,321.80
  6. Step 6: Final answer
    x = 15,757,693.16

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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.