Home / 20,834,331.51-28,753,143.07-11,544,815.49

Finding the Fourth Proportional to 20,834,331.51, 28,753,143.07 and 11,544,815.49

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Solution

The fourth proportional to 20,834,331.51, 28,753,143.07 and 11,544,815.49 is: 15,932,823.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834,331.51 : 28,753,143.07 = 11,544,815.49 : x
  2. Step 2: Convert to fraction form
    20,834,331.51/28,753,143.07 = 11,544,815.49/x
  3. Step 3: Cross multiply
    20,834,331.51x = 28,753,143.07 × 11,544,815.49
  4. Step 4: Simplify right side
    20,834,331.51x = 331,949,731,407,328.88
  5. Step 5: Solve for x
    x = 331,949,731,407,328.88/20,834,331.51
  6. Step 6: Final answer
    x = 15,932,823.73

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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.