Home / 68,143,466.70-102,215,200.05-31,739,758.20

Finding the Fourth Proportional to 68,143,466.70, 102,215,200.05 and 31,739,758.20

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Solution

The fourth proportional to 68,143,466.70, 102,215,200.05 and 31,739,758.20 is: 47,609,637.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,143,466.70 : 102,215,200.05 = 31,739,758.20 : x
  2. Step 2: Convert to fraction form
    68,143,466.70/102,215,200.05 = 31,739,758.20/x
  3. Step 3: Cross multiply
    68,143,466.70x = 102,215,200.05 × 31,739,758.20
  4. Step 4: Simplify right side
    68,143,466.70x = 3,244,285,733,951,627.50
  5. Step 5: Solve for x
    x = 3,244,285,733,951,627.50/68,143,466.70
  6. Step 6: Final answer
    x = 47,609,637.30

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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.