Home / 77,841,144,857.36-116,749,919,765.38-21,185,422,813.91

Finding the Fourth Proportional to 77,841,144,857.36, 116,749,919,765.38 and 21,185,422,813.91

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Solution

The fourth proportional to 77,841,144,857.36, 116,749,919,765.38 and 21,185,422,813.91 is: 31,774,923,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,841,144,857.36 : 116,749,919,765.38 = 21,185,422,813.91 : x
  2. Step 2: Convert to fraction form
    77,841,144,857.36/116,749,919,765.38 = 21,185,422,813.91/x
  3. Step 3: Cross multiply
    77,841,144,857.36x = 116,749,919,765.38 × 21,185,422,813.91
  4. Step 4: Simplify right side
    77,841,144,857.36x = 2,473,396,413,719,876,993,024
  5. Step 5: Solve for x
    x = 2,473,396,413,719,876,993,024/77,841,144,857.36
  6. Step 6: Final answer
    x = 31,774,923,380.84

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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.