Home / 2,147,015,621.60-3,220,523,432.40-1,213,380,072.80

Finding the Fourth Proportional to 2,147,015,621.60, 3,220,523,432.40 and 1,213,380,072.80

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Solution

The fourth proportional to 2,147,015,621.60, 3,220,523,432.40 and 1,213,380,072.80 is: 1,820,070,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,015,621.60 : 3,220,523,432.40 = 1,213,380,072.80 : x
  2. Step 2: Convert to fraction form
    2,147,015,621.60/3,220,523,432.40 = 1,213,380,072.80/x
  3. Step 3: Cross multiply
    2,147,015,621.60x = 3,220,523,432.40 × 1,213,380,072.80
  4. Step 4: Simplify right side
    2,147,015,621.60x = 3,907,718,956,859,617,792
  5. Step 5: Solve for x
    x = 3,907,718,956,859,617,792/2,147,015,621.60
  6. Step 6: Final answer
    x = 1,820,070,109.20

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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.