Home / 39,782,561,553.66-54,899,655,661.74-21,718,077,764.70

Finding the Fourth Proportional to 39,782,561,553.66, 54,899,655,661.74 and 21,718,077,764.70

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Solution

The fourth proportional to 39,782,561,553.66, 54,899,655,661.74 and 21,718,077,764.70 is: 29,970,794,849.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,782,561,553.66 : 54,899,655,661.74 = 21,718,077,764.70 : x
  2. Step 2: Convert to fraction form
    39,782,561,553.66/54,899,655,661.74 = 21,718,077,764.70/x
  3. Step 3: Cross multiply
    39,782,561,553.66x = 54,899,655,661.74 × 21,718,077,764.70
  4. Step 4: Simplify right side
    39,782,561,553.66x = 1,192,314,990,916,921,982,976
  5. Step 5: Solve for x
    x = 1,192,314,990,916,921,982,976/39,782,561,553.66
  6. Step 6: Final answer
    x = 29,970,794,849.61

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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.