Home / 20,448,978,116.96-28,217,440,043.73-11,873,728,514.32

Finding the Fourth Proportional to 20,448,978,116.96, 28,217,440,043.73 and 11,873,728,514.32

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Solution

The fourth proportional to 20,448,978,116.96, 28,217,440,043.73 and 11,873,728,514.32 is: 16,384,497,089.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448,978,116.96 : 28,217,440,043.73 = 11,873,728,514.32 : x
  2. Step 2: Convert to fraction form
    20,448,978,116.96/28,217,440,043.73 = 11,873,728,514.32/x
  3. Step 3: Cross multiply
    20,448,978,116.96x = 28,217,440,043.73 × 11,873,728,514.32
  4. Step 4: Simplify right side
    20,448,978,116.96x = 335,046,222,448,295,477,248
  5. Step 5: Solve for x
    x = 335,046,222,448,295,477,248/20,448,978,116.96
  6. Step 6: Final answer
    x = 16,384,497,089.87

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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.