Home / 143,855,999.60-215,783,999.40-82,445,039.60

Finding the Fourth Proportional to 143,855,999.60, 215,783,999.40 and 82,445,039.60

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Solution

The fourth proportional to 143,855,999.60, 215,783,999.40 and 82,445,039.60 is: 123,667,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,855,999.60 : 215,783,999.40 = 82,445,039.60 : x
  2. Step 2: Convert to fraction form
    143,855,999.60/215,783,999.40 = 82,445,039.60/x
  3. Step 3: Cross multiply
    143,855,999.60x = 215,783,999.40 × 82,445,039.60
  4. Step 4: Simplify right side
    143,855,999.60x = 17,790,320,375,579,376
  5. Step 5: Solve for x
    x = 17,790,320,375,579,376/143,855,999.60
  6. Step 6: Final answer
    x = 123,667,559.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.