Home / 21,278,900.69-31,922,834.39-6,900,847.37

Finding the Fourth Proportional to 21,278,900.69, 31,922,834.39 and 6,900,847.37

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Solution

The fourth proportional to 21,278,900.69, 31,922,834.39 and 6,900,847.37 is: 10,352,725.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,900.69 : 31,922,834.39 = 6,900,847.37 : x
  2. Step 2: Convert to fraction form
    21,278,900.69/31,922,834.39 = 6,900,847.37/x
  3. Step 3: Cross multiply
    21,278,900.69x = 31,922,834.39 × 6,900,847.37
  4. Step 4: Simplify right side
    21,278,900.69x = 220,294,607,600,815
  5. Step 5: Solve for x
    x = 220,294,607,600,815/21,278,900.69
  6. Step 6: Final answer
    x = 10,352,725.02

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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.