Home / 31,314,612,998.43-43,215,588,946.73-18,454,795,694.84

Finding the Fourth Proportional to 31,314,612,998.43, 43,215,588,946.73 and 18,454,795,694.84

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Solution

The fourth proportional to 31,314,612,998.43, 43,215,588,946.73 and 18,454,795,694.84 is: 25,468,456,687.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,314,612,998.43 : 43,215,588,946.73 = 18,454,795,694.84 : x
  2. Step 2: Convert to fraction form
    31,314,612,998.43/43,215,588,946.73 = 18,454,795,694.84/x
  3. Step 3: Cross multiply
    31,314,612,998.43x = 43,215,588,946.73 × 18,454,795,694.84
  4. Step 4: Simplify right side
    31,314,612,998.43x = 797,534,864,844,211,224,576
  5. Step 5: Solve for x
    x = 797,534,864,844,211,224,576/31,314,612,998.43
  6. Step 6: Final answer
    x = 25,468,456,687.75

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1.5x scale

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.