Home / 21,378,200.10-32,067,300.15-18,723,992.10

Finding the Fourth Proportional to 21,378,200.10, 32,067,300.15 and 18,723,992.10

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Solution

The fourth proportional to 21,378,200.10, 32,067,300.15 and 18,723,992.10 is: 28,085,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,378,200.10 : 32,067,300.15 = 18,723,992.10 : x
  2. Step 2: Convert to fraction form
    21,378,200.10/32,067,300.15 = 18,723,992.10/x
  3. Step 3: Cross multiply
    21,378,200.10x = 32,067,300.15 × 18,723,992.10
  4. Step 4: Simplify right side
    21,378,200.10x = 600,427,874,676,928.88
  5. Step 5: Solve for x
    x = 600,427,874,676,928.88/21,378,200.10
  6. Step 6: Final answer
    x = 28,085,988.15

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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.