Home / 1,280,132,276.80-1,920,198,415.20-1,226,384,564.80

Finding the Fourth Proportional to 1,280,132,276.80, 1,920,198,415.20 and 1,226,384,564.80

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Solution

The fourth proportional to 1,280,132,276.80, 1,920,198,415.20 and 1,226,384,564.80 is: 1,839,576,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,132,276.80 : 1,920,198,415.20 = 1,226,384,564.80 : x
  2. Step 2: Convert to fraction form
    1,280,132,276.80/1,920,198,415.20 = 1,226,384,564.80/x
  3. Step 3: Cross multiply
    1,280,132,276.80x = 1,920,198,415.20 × 1,226,384,564.80
  4. Step 4: Simplify right side
    1,280,132,276.80x = 2,354,901,697,754,701,824
  5. Step 5: Solve for x
    x = 2,354,901,697,754,701,824/1,280,132,276.80
  6. Step 6: Final answer
    x = 1,839,576,847.20

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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.