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Finding the Fourth Proportional to 403,906,256.80, 604,347,730.80 and 267,857,360.80

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Solution

The fourth proportional to 403,906,256.80, 604,347,730.80 and 267,857,360.80 is: 400,783,561.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,906,256.80 : 604,347,730.80 = 267,857,360.80 : x
  2. Step 2: Convert to fraction form
    403,906,256.80/604,347,730.80 = 267,857,360.80/x
  3. Step 3: Cross multiply
    403,906,256.80x = 604,347,730.80 × 267,857,360.80
  4. Step 4: Simplify right side
    403,906,256.80x = 161,878,988,177,556,864
  5. Step 5: Solve for x
    x = 161,878,988,177,556,864/403,906,256.80
  6. Step 6: Final answer
    x = 400,783,561.66

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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.