Home / 28,262,819.80-39,011,149.26-16,505,259.71

Finding the Fourth Proportional to 28,262,819.80, 39,011,149.26 and 16,505,259.71

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Solution

The fourth proportional to 28,262,819.80, 39,011,149.26 and 16,505,259.71 is: 22,782,197.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262,819.80 : 39,011,149.26 = 16,505,259.71 : x
  2. Step 2: Convert to fraction form
    28,262,819.80/39,011,149.26 = 16,505,259.71/x
  3. Step 3: Cross multiply
    28,262,819.80x = 39,011,149.26 × 16,505,259.71
  4. Step 4: Simplify right side
    28,262,819.80x = 643,889,150,039,348.12
  5. Step 5: Solve for x
    x = 643,889,150,039,348.12/28,262,819.80
  6. Step 6: Final answer
    x = 22,782,197.77

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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.