Home / 2,619,480,540.40-3,929,220,810.60-1,309,584,763.60

Finding the Fourth Proportional to 2,619,480,540.40, 3,929,220,810.60 and 1,309,584,763.60

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Solution

The fourth proportional to 2,619,480,540.40, 3,929,220,810.60 and 1,309,584,763.60 is: 1,964,377,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619,480,540.40 : 3,929,220,810.60 = 1,309,584,763.60 : x
  2. Step 2: Convert to fraction form
    2,619,480,540.40/3,929,220,810.60 = 1,309,584,763.60/x
  3. Step 3: Cross multiply
    2,619,480,540.40x = 3,929,220,810.60 × 1,309,584,763.60
  4. Step 4: Simplify right side
    2,619,480,540.40x = 5,145,647,706,381,800,448
  5. Step 5: Solve for x
    x = 5,145,647,706,381,800,448/2,619,480,540.40
  6. Step 6: Final answer
    x = 1,964,377,145.40

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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.