Home / 21,454,190.80-32,181,286.20-12,384,264.40

Finding the Fourth Proportional to 21,454,190.80, 32,181,286.20 and 12,384,264.40

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Solution

The fourth proportional to 21,454,190.80, 32,181,286.20 and 12,384,264.40 is: 18,576,396.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454,190.80 : 32,181,286.20 = 12,384,264.40 : x
  2. Step 2: Convert to fraction form
    21,454,190.80/32,181,286.20 = 12,384,264.40/x
  3. Step 3: Cross multiply
    21,454,190.80x = 32,181,286.20 × 12,384,264.40
  4. Step 4: Simplify right side
    21,454,190.80x = 398,541,557,032,871.31
  5. Step 5: Solve for x
    x = 398,541,557,032,871.31/21,454,190.80
  6. Step 6: Final answer
    x = 18,576,396.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.