Home / 1,811,229,119.71-2,499,504,649.65-1,028,990,891.23

Finding the Fourth Proportional to 1,811,229,119.71, 2,499,504,649.65 and 1,028,990,891.23

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Solution

The fourth proportional to 1,811,229,119.71, 2,499,504,649.65 and 1,028,990,891.23 is: 1,420,012,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811,229,119.71 : 2,499,504,649.65 = 1,028,990,891.23 : x
  2. Step 2: Convert to fraction form
    1,811,229,119.71/2,499,504,649.65 = 1,028,990,891.23/x
  3. Step 3: Cross multiply
    1,811,229,119.71x = 2,499,504,649.65 × 1,028,990,891.23
  4. Step 4: Simplify right side
    1,811,229,119.71x = 2,571,967,517,076,882,432
  5. Step 5: Solve for x
    x = 2,571,967,517,076,882,432/1,811,229,119.71
  6. Step 6: Final answer
    x = 1,420,012,238.70

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Double scale
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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.