Home / 20,578,499.96-28,373,503.77-17,782,628.22

Finding the Fourth Proportional to 20,578,499.96, 28,373,503.77 and 17,782,628.22

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Solution

The fourth proportional to 20,578,499.96, 28,373,503.77 and 17,782,628.22 is: 24,518,573.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578,499.96 : 28,373,503.77 = 17,782,628.22 : x
  2. Step 2: Convert to fraction form
    20,578,499.96/28,373,503.77 = 17,782,628.22/x
  3. Step 3: Cross multiply
    20,578,499.96x = 28,373,503.77 × 17,782,628.22
  4. Step 4: Simplify right side
    20,578,499.96x = 504,555,468,840,678.38
  5. Step 5: Solve for x
    x = 504,555,468,840,678.38/20,578,499.96
  6. Step 6: Final answer
    x = 24,518,573.75

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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.