Home / 20,515,305.16-28,162,869.77-17,609,651.56

Finding the Fourth Proportional to 20,515,305.16, 28,162,869.77 and 17,609,651.56

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Solution

The fourth proportional to 20,515,305.16, 28,162,869.77 and 17,609,651.56 is: 24,174,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515,305.16 : 28,162,869.77 = 17,609,651.56 : x
  2. Step 2: Convert to fraction form
    20,515,305.16/28,162,869.77 = 17,609,651.56/x
  3. Step 3: Cross multiply
    20,515,305.16x = 28,162,869.77 × 17,609,651.56
  4. Step 4: Simplify right side
    20,515,305.16x = 495,938,323,579,357.31
  5. Step 5: Solve for x
    x = 495,938,323,579,357.31/20,515,305.16
  6. Step 6: Final answer
    x = 24,174,065.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.