Home / 39,782,561,551.28-54,899,655,658.43-21,718,077,762.32

Finding the Fourth Proportional to 39,782,561,551.28, 54,899,655,658.43 and 21,718,077,762.32

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Solution

The fourth proportional to 39,782,561,551.28, 54,899,655,658.43 and 21,718,077,762.32 is: 29,970,794,846.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,782,561,551.28 : 54,899,655,658.43 = 21,718,077,762.32 : x
  2. Step 2: Convert to fraction form
    39,782,561,551.28/54,899,655,658.43 = 21,718,077,762.32/x
  3. Step 3: Cross multiply
    39,782,561,551.28x = 54,899,655,658.43 × 21,718,077,762.32
  4. Step 4: Simplify right side
    39,782,561,551.28x = 1,192,314,990,714,373,799,936
  5. Step 5: Solve for x
    x = 1,192,314,990,714,373,799,936/39,782,561,551.28
  6. Step 6: Final answer
    x = 29,970,794,846.32

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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.