Home / 3,561,121.64-4,913,700.80-1,991,281.80

Finding the Fourth Proportional to 3,561,121.64, 4,913,700.80 and 1,991,281.80

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Solution

The fourth proportional to 3,561,121.64, 4,913,700.80 and 1,991,281.80 is: 2,747,607.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561,121.64 : 4,913,700.80 = 1,991,281.80 : x
  2. Step 2: Convert to fraction form
    3,561,121.64/4,913,700.80 = 1,991,281.80/x
  3. Step 3: Cross multiply
    3,561,121.64x = 4,913,700.80 × 1,991,281.80
  4. Step 4: Simplify right side
    3,561,121.64x = 9,784,562,963,729.03
  5. Step 5: Solve for x
    x = 9,784,562,963,729.03/3,561,121.64
  6. Step 6: Final answer
    x = 2,747,607.06

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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.