Home / 221,447,212.34-305,591,221.45-122,325,826.38

Finding the Fourth Proportional to 221,447,212.34, 305,591,221.45 and 122,325,826.38

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Solution

The fourth proportional to 221,447,212.34, 305,591,221.45 and 122,325,826.38 is: 168,806,363.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,447,212.34 : 305,591,221.45 = 122,325,826.38 : x
  2. Step 2: Convert to fraction form
    221,447,212.34/305,591,221.45 = 122,325,826.38/x
  3. Step 3: Cross multiply
    221,447,212.34x = 305,591,221.45 × 122,325,826.38
  4. Step 4: Simplify right side
    221,447,212.34x = 37,381,698,698,039,016
  5. Step 5: Solve for x
    x = 37,381,698,698,039,016/221,447,212.34
  6. Step 6: Final answer
    x = 168,806,363.84

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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.