Home / 39,782,561,555.18-54,899,655,663.78-21,718,077,766.22

Finding the Fourth Proportional to 39,782,561,555.18, 54,899,655,663.78 and 21,718,077,766.22

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Solution

The fourth proportional to 39,782,561,555.18, 54,899,655,663.78 and 21,718,077,766.22 is: 29,970,794,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,782,561,555.18 : 54,899,655,663.78 = 21,718,077,766.22 : x
  2. Step 2: Convert to fraction form
    39,782,561,555.18/54,899,655,663.78 = 21,718,077,766.22/x
  3. Step 3: Cross multiply
    39,782,561,555.18x = 54,899,655,663.78 × 21,718,077,766.22
  4. Step 4: Simplify right side
    39,782,561,555.18x = 1,192,314,991,044,399,726,592
  5. Step 5: Solve for x
    x = 1,192,314,991,044,399,726,592/39,782,561,555.18
  6. Step 6: Final answer
    x = 29,970,794,851.68

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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.