Home / 20,556,376.62-30,848,518.17-10,978,629.18

Finding the Fourth Proportional to 20,556,376.62, 30,848,518.17 and 10,978,629.18

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Solution

The fourth proportional to 20,556,376.62, 30,848,518.17 and 10,978,629.18 is: 16,475,395.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556,376.62 : 30,848,518.17 = 10,978,629.18 : x
  2. Step 2: Convert to fraction form
    20,556,376.62/30,848,518.17 = 10,978,629.18/x
  3. Step 3: Cross multiply
    20,556,376.62x = 30,848,518.17 × 10,978,629.18
  4. Step 4: Simplify right side
    20,556,376.62x = 338,674,441,740,922.19
  5. Step 5: Solve for x
    x = 338,674,441,740,922.19/20,556,376.62
  6. Step 6: Final answer
    x = 16,475,395.83

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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.