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Finding the Fourth Proportional to 221,797,316.40, 332,058,245.40 and 215,420,024.40

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Solution

The fourth proportional to 221,797,316.40, 332,058,245.40 and 215,420,024.40 is: 322,510,643.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,797,316.40 : 332,058,245.40 = 215,420,024.40 : x
  2. Step 2: Convert to fraction form
    221,797,316.40/332,058,245.40 = 215,420,024.40/x
  3. Step 3: Cross multiply
    221,797,316.40x = 332,058,245.40 × 215,420,024.40
  4. Step 4: Simplify right side
    221,797,316.40x = 71,531,995,326,289,184
  5. Step 5: Solve for x
    x = 71,531,995,326,289,184/221,797,316.40
  6. Step 6: Final answer
    x = 322,510,643.89

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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.