Home / 1,321,462,568.88-1,981,769,491.08-435,948,873.84

Finding the Fourth Proportional to 1,321,462,568.88, 1,981,769,491.08 and 435,948,873.84

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Solution

The fourth proportional to 1,321,462,568.88, 1,981,769,491.08 and 435,948,873.84 is: 653,783,314.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,462,568.88 : 1,981,769,491.08 = 435,948,873.84 : x
  2. Step 2: Convert to fraction form
    1,321,462,568.88/1,981,769,491.08 = 435,948,873.84/x
  3. Step 3: Cross multiply
    1,321,462,568.88x = 1,981,769,491.08 × 435,948,873.84
  4. Step 4: Simplify right side
    1,321,462,568.88x = 863,950,177,846,795,904
  5. Step 5: Solve for x
    x = 863,950,177,846,795,904/1,321,462,568.88
  6. Step 6: Final answer
    x = 653,783,314.18

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Double scale
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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.