Home / 20,496,842.66-28,288,455.46-11,794,837.70

Finding the Fourth Proportional to 20,496,842.66, 28,288,455.46 and 11,794,837.70

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Solution

The fourth proportional to 20,496,842.66, 28,288,455.46 and 11,794,837.70 is: 16,278,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496,842.66 : 28,288,455.46 = 11,794,837.70 : x
  2. Step 2: Convert to fraction form
    20,496,842.66/28,288,455.46 = 11,794,837.70/x
  3. Step 3: Cross multiply
    20,496,842.66x = 28,288,455.46 × 11,794,837.70
  4. Step 4: Simplify right side
    20,496,842.66x = 333,657,740,934,378.81
  5. Step 5: Solve for x
    x = 333,657,740,934,378.81/20,496,842.66
  6. Step 6: Final answer
    x = 16,278,494.52

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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.