Home / 330,286,543.20-495,429,814.80-221,447,426.40

Finding the Fourth Proportional to 330,286,543.20, 495,429,814.80 and 221,447,426.40

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Solution

The fourth proportional to 330,286,543.20, 495,429,814.80 and 221,447,426.40 is: 332,171,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,286,543.20 : 495,429,814.80 = 221,447,426.40 : x
  2. Step 2: Convert to fraction form
    330,286,543.20/495,429,814.80 = 221,447,426.40/x
  3. Step 3: Cross multiply
    330,286,543.20x = 495,429,814.80 × 221,447,426.40
  4. Step 4: Simplify right side
    330,286,543.20x = 109,711,657,449,288,640
  5. Step 5: Solve for x
    x = 109,711,657,449,288,640/330,286,543.20
  6. Step 6: Final answer
    x = 332,171,139.60

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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.