Home / 77,841,144,857.18-116,749,919,765.10-21,185,422,813.73

Finding the Fourth Proportional to 77,841,144,857.18, 116,749,919,765.10 and 21,185,422,813.73

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Solution

The fourth proportional to 77,841,144,857.18, 116,749,919,765.10 and 21,185,422,813.73 is: 31,774,923,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,841,144,857.18 : 116,749,919,765.10 = 21,185,422,813.73 : x
  2. Step 2: Convert to fraction form
    77,841,144,857.18/116,749,919,765.10 = 21,185,422,813.73/x
  3. Step 3: Cross multiply
    77,841,144,857.18x = 116,749,919,765.10 × 21,185,422,813.73
  4. Step 4: Simplify right side
    77,841,144,857.18x = 2,473,396,413,692,112,797,696
  5. Step 5: Solve for x
    x = 2,473,396,413,692,112,797,696/77,841,144,857.18
  6. Step 6: Final answer
    x = 31,774,923,380.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.