Home / 155,954,026.98-215,216,608.05-85,394,108.57

Finding the Fourth Proportional to 155,954,026.98, 215,216,608.05 and 85,394,108.57

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Solution

The fourth proportional to 155,954,026.98, 215,216,608.05 and 85,394,108.57 is: 117,843,897.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,954,026.98 : 215,216,608.05 = 85,394,108.57 : x
  2. Step 2: Convert to fraction form
    155,954,026.98/215,216,608.05 = 85,394,108.57/x
  3. Step 3: Cross multiply
    155,954,026.98x = 215,216,608.05 × 85,394,108.57
  4. Step 4: Simplify right side
    155,954,026.98x = 18,378,230,392,812,752
  5. Step 5: Solve for x
    x = 18,378,230,392,812,752/155,954,026.98
  6. Step 6: Final answer
    x = 117,843,897.65

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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.