Home / 20,228,979.10-30,343,468.65-16,638,799.90

Finding the Fourth Proportional to 20,228,979.10, 30,343,468.65 and 16,638,799.90

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Solution

The fourth proportional to 20,228,979.10, 30,343,468.65 and 16,638,799.90 is: 24,958,199.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228,979.10 : 30,343,468.65 = 16,638,799.90 : x
  2. Step 2: Convert to fraction form
    20,228,979.10/30,343,468.65 = 16,638,799.90/x
  3. Step 3: Cross multiply
    20,228,979.10x = 30,343,468.65 × 16,638,799.90
  4. Step 4: Simplify right side
    20,228,979.10x = 504,878,903,139,273.12
  5. Step 5: Solve for x
    x = 504,878,903,139,273.12/20,228,979.10
  6. Step 6: Final answer
    x = 24,958,199.85

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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.