Home / 2,115,086.97-2,918,512.04-1,209,494.01

Finding the Fourth Proportional to 2,115,086.97, 2,918,512.04 and 1,209,494.01

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Solution

The fourth proportional to 2,115,086.97, 2,918,512.04 and 1,209,494.01 is: 1,668,925.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,086.97 : 2,918,512.04 = 1,209,494.01 : x
  2. Step 2: Convert to fraction form
    2,115,086.97/2,918,512.04 = 1,209,494.01/x
  3. Step 3: Cross multiply
    2,115,086.97x = 2,918,512.04 × 1,209,494.01
  4. Step 4: Simplify right side
    2,115,086.97x = 3,529,922,824,445.41
  5. Step 5: Solve for x
    x = 3,529,922,824,445.41/2,115,086.97
  6. Step 6: Final answer
    x = 1,668,925.62

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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.