Home / 18,763,619.89-25,880,446.84-17,219,866.71

Finding the Fourth Proportional to 18,763,619.89, 25,880,446.84 and 17,219,866.71

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Solution

The fourth proportional to 18,763,619.89, 25,880,446.84 and 17,219,866.71 is: 23,751,165.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763,619.89 : 25,880,446.84 = 17,219,866.71 : x
  2. Step 2: Convert to fraction form
    18,763,619.89/25,880,446.84 = 17,219,866.71/x
  3. Step 3: Cross multiply
    18,763,619.89x = 25,880,446.84 × 17,219,866.71
  4. Step 4: Simplify right side
    18,763,619.89x = 445,657,844,850,638.44
  5. Step 5: Solve for x
    x = 445,657,844,850,638.44/18,763,619.89
  6. Step 6: Final answer
    x = 23,751,165.69

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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.