Home / 912,348,367.59-1,368,659,120.88-330,218,813.88

Finding the Fourth Proportional to 912,348,367.59, 1,368,659,120.88 and 330,218,813.88

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Solution

The fourth proportional to 912,348,367.59, 1,368,659,120.88 and 330,218,813.88 is: 495,377,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,348,367.59 : 1,368,659,120.88 = 330,218,813.88 : x
  2. Step 2: Convert to fraction form
    912,348,367.59/1,368,659,120.88 = 330,218,813.88/x
  3. Step 3: Cross multiply
    912,348,367.59x = 1,368,659,120.88 × 330,218,813.88
  4. Step 4: Simplify right side
    912,348,367.59x = 451,956,991,504,258,880
  5. Step 5: Solve for x
    x = 451,956,991,504,258,880/912,348,367.59
  6. Step 6: Final answer
    x = 495,377,651.30

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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.