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Finding the Fourth Proportional to 361,728,061.60, 542,592,092.40 and 347,619,287.20

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Solution

The fourth proportional to 361,728,061.60, 542,592,092.40 and 347,619,287.20 is: 521,428,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,728,061.60 : 542,592,092.40 = 347,619,287.20 : x
  2. Step 2: Convert to fraction form
    361,728,061.60/542,592,092.40 = 347,619,287.20/x
  3. Step 3: Cross multiply
    361,728,061.60x = 542,592,092.40 × 347,619,287.20
  4. Step 4: Simplify right side
    361,728,061.60x = 188,615,476,400,444,512
  5. Step 5: Solve for x
    x = 188,615,476,400,444,512/361,728,061.60
  6. Step 6: Final answer
    x = 521,428,930.80

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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.