Home / 38,476,777,811.91-53,097,952,229.87-21,329,587,640.32

Finding the Fourth Proportional to 38,476,777,811.91, 53,097,952,229.87 and 21,329,587,640.32

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Solution

The fourth proportional to 38,476,777,811.91, 53,097,952,229.87 and 21,329,587,640.32 is: 29,434,830,305.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,476,777,811.91 : 53,097,952,229.87 = 21,329,587,640.32 : x
  2. Step 2: Convert to fraction form
    38,476,777,811.91/53,097,952,229.87 = 21,329,587,640.32/x
  3. Step 3: Cross multiply
    38,476,777,811.91x = 53,097,952,229.87 × 21,329,587,640.32
  4. Step 4: Simplify right side
    38,476,777,811.91x = 1,132,557,425,608,685,387,776
  5. Step 5: Solve for x
    x = 1,132,557,425,608,685,387,776/38,476,777,811.91
  6. Step 6: Final answer
    x = 29,434,830,305.83

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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.