Home / 12,672,200.40-18,970,975.80-11,933,998.80

Finding the Fourth Proportional to 12,672,200.40, 18,970,975.80 and 11,933,998.80

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Solution

The fourth proportional to 12,672,200.40, 18,970,975.80 and 11,933,998.80 is: 17,865,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672,200.40 : 18,970,975.80 = 11,933,998.80 : x
  2. Step 2: Convert to fraction form
    12,672,200.40/18,970,975.80 = 11,933,998.80/x
  3. Step 3: Cross multiply
    12,672,200.40x = 18,970,975.80 × 11,933,998.80
  4. Step 4: Simplify right side
    12,672,200.40x = 226,399,602,432,029.06
  5. Step 5: Solve for x
    x = 226,399,602,432,029.06/12,672,200.40
  6. Step 6: Final answer
    x = 17,865,847.70

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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.