Home / 330,274,387.20-495,411,580.80-221,435,270.40

Finding the Fourth Proportional to 330,274,387.20, 495,411,580.80 and 221,435,270.40

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Solution

The fourth proportional to 330,274,387.20, 495,411,580.80 and 221,435,270.40 is: 332,152,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,274,387.20 : 495,411,580.80 = 221,435,270.40 : x
  2. Step 2: Convert to fraction form
    330,274,387.20/495,411,580.80 = 221,435,270.40/x
  3. Step 3: Cross multiply
    330,274,387.20x = 495,411,580.80 × 221,435,270.40
  4. Step 4: Simplify right side
    330,274,387.20x = 109,701,597,353,739,456
  5. Step 5: Solve for x
    x = 109,701,597,353,739,456/330,274,387.20
  6. Step 6: Final answer
    x = 332,152,905.60

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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.