Home / 1,928,028,142.38-2,660,492,920.77-1,081,289,839.98

Finding the Fourth Proportional to 1,928,028,142.38, 2,660,492,920.77 and 1,081,289,839.98

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Solution

The fourth proportional to 1,928,028,142.38, 2,660,492,920.77 and 1,081,289,839.98 is: 1,492,075,712.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,028,142.38 : 2,660,492,920.77 = 1,081,289,839.98 : x
  2. Step 2: Convert to fraction form
    1,928,028,142.38/2,660,492,920.77 = 1,081,289,839.98/x
  3. Step 3: Cross multiply
    1,928,028,142.38x = 2,660,492,920.77 × 1,081,289,839.98
  4. Step 4: Simplify right side
    1,928,028,142.38x = 2,876,763,964,567,315,968
  5. Step 5: Solve for x
    x = 2,876,763,964,567,315,968/1,928,028,142.38
  6. Step 6: Final answer
    x = 1,492,075,712.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.