Home / 1,491,016,152.30-2,057,608,505.09-821,946,498.72

Finding the Fourth Proportional to 1,491,016,152.30, 2,057,608,505.09 and 821,946,498.72

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Solution

The fourth proportional to 1,491,016,152.30, 2,057,608,505.09 and 821,946,498.72 is: 1,134,289,594.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,016,152.30 : 2,057,608,505.09 = 821,946,498.72 : x
  2. Step 2: Convert to fraction form
    1,491,016,152.30/2,057,608,505.09 = 821,946,498.72/x
  3. Step 3: Cross multiply
    1,491,016,152.30x = 2,057,608,505.09 × 821,946,498.72
  4. Step 4: Simplify right side
    1,491,016,152.30x = 1,691,244,106,491,109,120
  5. Step 5: Solve for x
    x = 1,691,244,106,491,109,120/1,491,016,152.30
  6. Step 6: Final answer
    x = 1,134,289,594.30

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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.