Home / 77,841,144,857.08-116,749,919,764.96-21,185,422,813.63

Finding the Fourth Proportional to 77,841,144,857.08, 116,749,919,764.96 and 21,185,422,813.63

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Solution

The fourth proportional to 77,841,144,857.08, 116,749,919,764.96 and 21,185,422,813.63 is: 31,774,923,380.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,841,144,857.08 : 116,749,919,764.96 = 21,185,422,813.63 : x
  2. Step 2: Convert to fraction form
    77,841,144,857.08/116,749,919,764.96 = 21,185,422,813.63/x
  3. Step 3: Cross multiply
    77,841,144,857.08x = 116,749,919,764.96 × 21,185,422,813.63
  4. Step 4: Simplify right side
    77,841,144,857.08x = 2,473,396,413,678,289,420,288
  5. Step 5: Solve for x
    x = 2,473,396,413,678,289,420,288/77,841,144,857.08
  6. Step 6: Final answer
    x = 31,774,923,380.42

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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.