Home / 1,920,190,781.70-2,880,286,172.55-1,844,943,984.90

Finding the Fourth Proportional to 1,920,190,781.70, 2,880,286,172.55 and 1,844,943,984.90

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Solution

The fourth proportional to 1,920,190,781.70, 2,880,286,172.55 and 1,844,943,984.90 is: 2,767,415,977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,190,781.70 : 2,880,286,172.55 = 1,844,943,984.90 : x
  2. Step 2: Convert to fraction form
    1,920,190,781.70/2,880,286,172.55 = 1,844,943,984.90/x
  3. Step 3: Cross multiply
    1,920,190,781.70x = 2,880,286,172.55 × 1,844,943,984.90
  4. Step 4: Simplify right side
    1,920,190,781.70x = 5,313,966,648,836,766,720
  5. Step 5: Solve for x
    x = 5,313,966,648,836,766,720/1,920,190,781.70
  6. Step 6: Final answer
    x = 2,767,415,977.35

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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.