Home / 20,866,137.96-28,761,998.66-16,448,660.36

Finding the Fourth Proportional to 20,866,137.96, 28,761,998.66 and 16,448,660.36

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Solution

The fourth proportional to 20,866,137.96, 28,761,998.66 and 16,448,660.36 is: 22,672,923.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,866,137.96 : 28,761,998.66 = 16,448,660.36 : x
  2. Step 2: Convert to fraction form
    20,866,137.96/28,761,998.66 = 16,448,660.36/x
  3. Step 3: Cross multiply
    20,866,137.96x = 28,761,998.66 × 16,448,660.36
  4. Step 4: Simplify right side
    20,866,137.96x = 473,096,347,233,115.12
  5. Step 5: Solve for x
    x = 473,096,347,233,115.12/20,866,137.96
  6. Step 6: Final answer
    x = 22,672,923.38

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1.5x scale

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.