Home / 212,580,069.90-318,870,104.85-161,183,820.30

Finding the Fourth Proportional to 212,580,069.90, 318,870,104.85 and 161,183,820.30

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Solution

The fourth proportional to 212,580,069.90, 318,870,104.85 and 161,183,820.30 is: 241,775,730.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,580,069.90 : 318,870,104.85 = 161,183,820.30 : x
  2. Step 2: Convert to fraction form
    212,580,069.90/318,870,104.85 = 161,183,820.30/x
  3. Step 3: Cross multiply
    212,580,069.90x = 318,870,104.85 × 161,183,820.30
  4. Step 4: Simplify right side
    212,580,069.90x = 51,396,701,679,184,568
  5. Step 5: Solve for x
    x = 51,396,701,679,184,568/212,580,069.90
  6. Step 6: Final answer
    x = 241,775,730.45

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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.