Home / 3,179,056.06-4,387,212.78-1,821,191.50

Finding the Fourth Proportional to 3,179,056.06, 4,387,212.78 and 1,821,191.50

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Solution

The fourth proportional to 3,179,056.06, 4,387,212.78 and 1,821,191.50 is: 2,513,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,056.06 : 4,387,212.78 = 1,821,191.50 : x
  2. Step 2: Convert to fraction form
    3,179,056.06/4,387,212.78 = 1,821,191.50/x
  3. Step 3: Cross multiply
    3,179,056.06x = 4,387,212.78 × 1,821,191.50
  4. Step 4: Simplify right side
    3,179,056.06x = 7,989,954,623,627.37
  5. Step 5: Solve for x
    x = 7,989,954,623,627.37/3,179,056.06
  6. Step 6: Final answer
    x = 2,513,310.39

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1.5x scale

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.