Home / 1,299,285,070.20-1,949,405,902.20-425,914,930.80

Finding the Fourth Proportional to 1,299,285,070.20, 1,949,405,902.20 and 425,914,930.80

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Solution

The fourth proportional to 1,299,285,070.20, 1,949,405,902.20 and 425,914,930.80 is: 639,029,185.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,285,070.20 : 1,949,405,902.20 = 425,914,930.80 : x
  2. Step 2: Convert to fraction form
    1,299,285,070.20/1,949,405,902.20 = 425,914,930.80/x
  3. Step 3: Cross multiply
    1,299,285,070.20x = 1,949,405,902.20 × 425,914,930.80
  4. Step 4: Simplify right side
    1,299,285,070.20x = 830,281,079,936,624,640
  5. Step 5: Solve for x
    x = 830,281,079,936,624,640/1,299,285,070.20
  6. Step 6: Final answer
    x = 639,029,185.34

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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.