Home / 404,485,072.60-606,727,608.90-393,147,664.60

Finding the Fourth Proportional to 404,485,072.60, 606,727,608.90 and 393,147,664.60

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Solution

The fourth proportional to 404,485,072.60, 606,727,608.90 and 393,147,664.60 is: 589,721,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,485,072.60 : 606,727,608.90 = 393,147,664.60 : x
  2. Step 2: Convert to fraction form
    404,485,072.60/606,727,608.90 = 393,147,664.60/x
  3. Step 3: Cross multiply
    404,485,072.60x = 606,727,608.90 × 393,147,664.60
  4. Step 4: Simplify right side
    404,485,072.60x = 238,533,542,487,377,184
  5. Step 5: Solve for x
    x = 238,533,542,487,377,184/404,485,072.60
  6. Step 6: Final answer
    x = 589,721,496.90

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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.