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Finding the Fourth Proportional to 229,331,342.40, 321,970,872 and 229,331,342.40

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Solution

The fourth proportional to 229,331,342.40, 321,970,872 and 229,331,342.40 is: 321,970,872

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,331,342.40 : 321,970,872 = 229,331,342.40 : x
  2. Step 2: Convert to fraction form
    229,331,342.40/321,970,872 = 229,331,342.40/x
  3. Step 3: Cross multiply
    229,331,342.40x = 321,970,872 × 229,331,342.40
  4. Step 4: Simplify right side
    229,331,342.40x = 73,838,012,289,458,576
  5. Step 5: Solve for x
    x = 73,838,012,289,458,576/229,331,342.40
  6. Step 6: Final answer
    x = 321,970,872

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.