Home / 2,190,100.74-3,022,039.98-1,223,107.62

Finding the Fourth Proportional to 2,190,100.74, 3,022,039.98 and 1,223,107.62

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Solution

The fourth proportional to 2,190,100.74, 3,022,039.98 and 1,223,107.62 is: 1,687,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,100.74 : 3,022,039.98 = 1,223,107.62 : x
  2. Step 2: Convert to fraction form
    2,190,100.74/3,022,039.98 = 1,223,107.62/x
  3. Step 3: Cross multiply
    2,190,100.74x = 3,022,039.98 × 1,223,107.62
  4. Step 4: Simplify right side
    2,190,100.74x = 3,696,280,127,482.65
  5. Step 5: Solve for x
    x = 3,696,280,127,482.65/2,190,100.74
  6. Step 6: Final answer
    x = 1,687,721.51

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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.