Home / 71,970,237,399.82-99,322,049,628.80-39,855,599,554.11

Finding the Fourth Proportional to 71,970,237,399.82, 99,322,049,628.80 and 39,855,599,554.11

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Solution

The fourth proportional to 71,970,237,399.82, 99,322,049,628.80 and 39,855,599,554.11 is: 55,002,456,291.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,970,237,399.82 : 99,322,049,628.80 = 39,855,599,554.11 : x
  2. Step 2: Convert to fraction form
    71,970,237,399.82/99,322,049,628.80 = 39,855,599,554.11/x
  3. Step 3: Cross multiply
    71,970,237,399.82x = 99,322,049,628.80 × 39,855,599,554.11
  4. Step 4: Simplify right side
    71,970,237,399.82x = 3,958,539,836,898,515,353,600
  5. Step 5: Solve for x
    x = 3,958,539,836,898,515,353,600/71,970,237,399.82
  6. Step 6: Final answer
    x = 55,002,456,291.86

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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.