Home / 1,299,284,958.20-1,949,405,734.20-425,914,818.80

Finding the Fourth Proportional to 1,299,284,958.20, 1,949,405,734.20 and 425,914,818.80

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Solution

The fourth proportional to 1,299,284,958.20, 1,949,405,734.20 and 425,914,818.80 is: 639,029,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,284,958.20 : 1,949,405,734.20 = 425,914,818.80 : x
  2. Step 2: Convert to fraction form
    1,299,284,958.20/1,949,405,734.20 = 425,914,818.80/x
  3. Step 3: Cross multiply
    1,299,284,958.20x = 1,949,405,734.20 × 425,914,818.80
  4. Step 4: Simplify right side
    1,299,284,958.20x = 830,280,790,049,474,048
  5. Step 5: Solve for x
    x = 830,280,790,049,474,048/1,299,284,958.20
  6. Step 6: Final answer
    x = 639,029,017.31

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Double scale
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1.5x scale

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.