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Finding the Fourth Proportional to 221,952,001.20, 332,928,001.80 and 221,952,001.20

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Solution

The fourth proportional to 221,952,001.20, 332,928,001.80 and 221,952,001.20 is: 332,928,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,952,001.20 : 332,928,001.80 = 221,952,001.20 : x
  2. Step 2: Convert to fraction form
    221,952,001.20/332,928,001.80 = 221,952,001.20/x
  3. Step 3: Cross multiply
    221,952,001.20x = 332,928,001.80 × 221,952,001.20
  4. Step 4: Simplify right side
    221,952,001.20x = 73,894,036,255,027,200
  5. Step 5: Solve for x
    x = 73,894,036,255,027,200/221,952,001.20
  6. Step 6: Final answer
    x = 332,928,001.80

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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.