Home / 20,922,666.54-28,873,625.49-11,503,856.22

Finding the Fourth Proportional to 20,922,666.54, 28,873,625.49 and 11,503,856.22

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Solution

The fourth proportional to 20,922,666.54, 28,873,625.49 and 11,503,856.22 is: 15,875,511.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922,666.54 : 28,873,625.49 = 11,503,856.22 : x
  2. Step 2: Convert to fraction form
    20,922,666.54/28,873,625.49 = 11,503,856.22/x
  3. Step 3: Cross multiply
    20,922,666.54x = 28,873,625.49 × 11,503,856.22
  4. Step 4: Simplify right side
    20,922,666.54x = 332,158,036,187,087.06
  5. Step 5: Solve for x
    x = 332,158,036,187,087.06/20,922,666.54
  6. Step 6: Final answer
    x = 15,875,511.64

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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.