Home / 330,276,695.20-495,415,042.80-221,437,578.40

Finding the Fourth Proportional to 330,276,695.20, 495,415,042.80 and 221,437,578.40

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Solution

The fourth proportional to 330,276,695.20, 495,415,042.80 and 221,437,578.40 is: 332,156,367.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,276,695.20 : 495,415,042.80 = 221,437,578.40 : x
  2. Step 2: Convert to fraction form
    330,276,695.20/495,415,042.80 = 221,437,578.40/x
  3. Step 3: Cross multiply
    330,276,695.20x = 495,415,042.80 × 221,437,578.40
  4. Step 4: Simplify right side
    330,276,695.20x = 109,703,507,380,564,368
  5. Step 5: Solve for x
    x = 109,703,507,380,564,368/330,276,695.20
  6. Step 6: Final answer
    x = 332,156,367.60

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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.