Home / 155,409,082.38-214,458,900.73-85,792,964.94

Finding the Fourth Proportional to 155,409,082.38, 214,458,900.73 and 85,792,964.94

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Solution

The fourth proportional to 155,409,082.38, 214,458,900.73 and 85,792,964.94 is: 118,391,181.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,409,082.38 : 214,458,900.73 = 85,792,964.94 : x
  2. Step 2: Convert to fraction form
    155,409,082.38/214,458,900.73 = 85,792,964.94/x
  3. Step 3: Cross multiply
    155,409,082.38x = 214,458,900.73 × 85,792,964.94
  4. Step 4: Simplify right side
    155,409,082.38x = 18,399,064,951,399,828
  5. Step 5: Solve for x
    x = 18,399,064,951,399,828/155,409,082.38
  6. Step 6: Final answer
    x = 118,391,181.97

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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.