Home / 20,582,322.80-28,405,349.88-11,417,918

Finding the Fourth Proportional to 20,582,322.80, 28,405,349.88 and 11,417,918

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Solution

The fourth proportional to 20,582,322.80, 28,405,349.88 and 11,417,918 is: 15,757,694.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582,322.80 : 28,405,349.88 = 11,417,918 : x
  2. Step 2: Convert to fraction form
    20,582,322.80/28,405,349.88 = 11,417,918/x
  3. Step 3: Cross multiply
    20,582,322.80x = 28,405,349.88 × 11,417,918
  4. Step 4: Simplify right side
    20,582,322.80x = 324,329,955,691,149.81
  5. Step 5: Solve for x
    x = 324,329,955,691,149.81/20,582,322.80
  6. Step 6: Final answer
    x = 15,757,694.54

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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.