Home / 20,947,126.82-28,906,581.84-12,126,952.01

Finding the Fourth Proportional to 20,947,126.82, 28,906,581.84 and 12,126,952.01

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Solution

The fourth proportional to 20,947,126.82, 28,906,581.84 and 12,126,952.01 is: 16,734,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947,126.82 : 28,906,581.84 = 12,126,952.01 : x
  2. Step 2: Convert to fraction form
    20,947,126.82/28,906,581.84 = 12,126,952.01/x
  3. Step 3: Cross multiply
    20,947,126.82x = 28,906,581.84 × 12,126,952.01
  4. Step 4: Simplify right side
    20,947,126.82x = 350,548,730,602,284.62
  5. Step 5: Solve for x
    x = 350,548,730,602,284.62/20,947,126.82
  6. Step 6: Final answer
    x = 16,734,931.42

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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.