Home / 85,967,872.20-128,951,808.30-75,890,176.20

Finding the Fourth Proportional to 85,967,872.20, 128,951,808.30 and 75,890,176.20

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Solution

The fourth proportional to 85,967,872.20, 128,951,808.30 and 75,890,176.20 is: 113,835,264.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,967,872.20 : 128,951,808.30 = 75,890,176.20 : x
  2. Step 2: Convert to fraction form
    85,967,872.20/128,951,808.30 = 75,890,176.20/x
  3. Step 3: Cross multiply
    85,967,872.20x = 128,951,808.30 × 75,890,176.20
  4. Step 4: Simplify right side
    85,967,872.20x = 9,786,175,453,195,622
  5. Step 5: Solve for x
    x = 9,786,175,453,195,622/85,967,872.20
  6. Step 6: Final answer
    x = 113,835,264.30

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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.