Home / 3,015,853.74-4,161,905.79-1,639,200.63

Finding the Fourth Proportional to 3,015,853.74, 4,161,905.79 and 1,639,200.63

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Solution

The fourth proportional to 3,015,853.74, 4,161,905.79 and 1,639,200.63 is: 2,262,111.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015,853.74 : 4,161,905.79 = 1,639,200.63 : x
  2. Step 2: Convert to fraction form
    3,015,853.74/4,161,905.79 = 1,639,200.63/x
  3. Step 3: Cross multiply
    3,015,853.74x = 4,161,905.79 × 1,639,200.63
  4. Step 4: Simplify right side
    3,015,853.74x = 6,822,198,592,968.65
  5. Step 5: Solve for x
    x = 6,822,198,592,968.65/3,015,853.74
  6. Step 6: Final answer
    x = 2,262,111.89

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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.