Home / 221,151,203.67-305,195,136.75-120,686,114.46

Finding the Fourth Proportional to 221,151,203.67, 305,195,136.75 and 120,686,114.46

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Solution

The fourth proportional to 221,151,203.67, 305,195,136.75 and 120,686,114.46 is: 166,550,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,151,203.67 : 305,195,136.75 = 120,686,114.46 : x
  2. Step 2: Convert to fraction form
    221,151,203.67/305,195,136.75 = 120,686,114.46/x
  3. Step 3: Cross multiply
    221,151,203.67x = 305,195,136.75 × 120,686,114.46
  4. Step 4: Simplify right side
    221,151,203.67x = 36,832,815,206,445,848
  5. Step 5: Solve for x
    x = 36,832,815,206,445,848/221,151,203.67
  6. Step 6: Final answer
    x = 166,550,371.85

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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.