Home / 39,782,561,556.18-54,899,655,665.16-21,718,077,767.22

Finding the Fourth Proportional to 39,782,561,556.18, 54,899,655,665.16 and 21,718,077,767.22

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Solution

The fourth proportional to 39,782,561,556.18, 54,899,655,665.16 and 21,718,077,767.22 is: 29,970,794,853.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,782,561,556.18 : 54,899,655,665.16 = 21,718,077,767.22 : x
  2. Step 2: Convert to fraction form
    39,782,561,556.18/54,899,655,665.16 = 21,718,077,767.22/x
  3. Step 3: Cross multiply
    39,782,561,556.18x = 54,899,655,665.16 × 21,718,077,767.22
  4. Step 4: Simplify right side
    39,782,561,556.18x = 1,192,314,991,129,545,146,368
  5. Step 5: Solve for x
    x = 1,192,314,991,129,545,146,368/39,782,561,556.18
  6. Step 6: Final answer
    x = 29,970,794,853.06

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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.