Home / 28,188,201.70-42,282,302.55-16,850,793.70

Finding the Fourth Proportional to 28,188,201.70, 42,282,302.55 and 16,850,793.70

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Solution

The fourth proportional to 28,188,201.70, 42,282,302.55 and 16,850,793.70 is: 25,276,190.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,201.70 : 42,282,302.55 = 16,850,793.70 : x
  2. Step 2: Convert to fraction form
    28,188,201.70/42,282,302.55 = 16,850,793.70/x
  3. Step 3: Cross multiply
    28,188,201.70x = 42,282,302.55 × 16,850,793.70
  4. Step 4: Simplify right side
    28,188,201.70x = 712,490,357,431,033.88
  5. Step 5: Solve for x
    x = 712,490,357,431,033.88/28,188,201.70
  6. Step 6: Final answer
    x = 25,276,190.55

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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.