Home / 159,013,098,418.30-219,437,776,993.79-86,755,212,213.23

Finding the Fourth Proportional to 159,013,098,418.30, 219,437,776,993.79 and 86,755,212,213.23

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Solution

The fourth proportional to 159,013,098,418.30, 219,437,776,993.79 and 86,755,212,213.23 is: 119,722,029,820.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,013,098,418.30 : 219,437,776,993.79 = 86,755,212,213.23 : x
  2. Step 2: Convert to fraction form
    159,013,098,418.30/219,437,776,993.79 = 86,755,212,213.23/x
  3. Step 3: Cross multiply
    159,013,098,418.30x = 219,437,776,993.79 × 86,755,212,213.23
  4. Step 4: Simplify right side
    159,013,098,418.30x = 19,037,370,910,696,129,167,360
  5. Step 5: Solve for x
    x = 19,037,370,910,696,129,167,360/159,013,098,418.30
  6. Step 6: Final answer
    x = 119,722,029,820.57

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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.