Home / 323,412,140.80-485,118,211.20-177,789,433.60

Finding the Fourth Proportional to 323,412,140.80, 485,118,211.20 and 177,789,433.60

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Solution

The fourth proportional to 323,412,140.80, 485,118,211.20 and 177,789,433.60 is: 266,684,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,412,140.80 : 485,118,211.20 = 177,789,433.60 : x
  2. Step 2: Convert to fraction form
    323,412,140.80/485,118,211.20 = 177,789,433.60/x
  3. Step 3: Cross multiply
    323,412,140.80x = 485,118,211.20 × 177,789,433.60
  4. Step 4: Simplify right side
    323,412,140.80x = 86,248,891,998,293,168
  5. Step 5: Solve for x
    x = 86,248,891,998,293,168/323,412,140.80
  6. Step 6: Final answer
    x = 266,684,150.40

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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.