Home / 20,399,350.35-28,151,794.44-11,107,280.82

Finding the Fourth Proportional to 20,399,350.35, 28,151,794.44 and 11,107,280.82

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Solution

The fourth proportional to 20,399,350.35, 28,151,794.44 and 11,107,280.82 is: 15,328,423.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,399,350.35 : 28,151,794.44 = 11,107,280.82 : x
  2. Step 2: Convert to fraction form
    20,399,350.35/28,151,794.44 = 11,107,280.82/x
  3. Step 3: Cross multiply
    20,399,350.35x = 28,151,794.44 × 11,107,280.82
  4. Step 4: Simplify right side
    20,399,350.35x = 312,689,886,431,994.69
  5. Step 5: Solve for x
    x = 312,689,886,431,994.69/20,399,350.35
  6. Step 6: Final answer
    x = 15,328,423.75

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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.