Home / 440,025,333.20-660,037,999.80-221,591,272.40

Finding the Fourth Proportional to 440,025,333.20, 660,037,999.80 and 221,591,272.40

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Solution

The fourth proportional to 440,025,333.20, 660,037,999.80 and 221,591,272.40 is: 332,386,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,025,333.20 : 660,037,999.80 = 221,591,272.40 : x
  2. Step 2: Convert to fraction form
    440,025,333.20/660,037,999.80 = 221,591,272.40/x
  3. Step 3: Cross multiply
    440,025,333.20x = 660,037,999.80 × 221,591,272.40
  4. Step 4: Simplify right side
    440,025,333.20x = 146,258,660,208,032,928
  5. Step 5: Solve for x
    x = 146,258,660,208,032,928/440,025,333.20
  6. Step 6: Final answer
    x = 332,386,908.60

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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.