Home / 155,942,185.70-215,132,664.20-94,028,128.22

Finding the Fourth Proportional to 155,942,185.70, 215,132,664.20 and 94,028,128.22

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Solution

The fourth proportional to 155,942,185.70, 215,132,664.20 and 94,028,128.22 is: 129,718,085.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,942,185.70 : 215,132,664.20 = 94,028,128.22 : x
  2. Step 2: Convert to fraction form
    155,942,185.70/215,132,664.20 = 94,028,128.22/x
  3. Step 3: Cross multiply
    155,942,185.70x = 215,132,664.20 × 94,028,128.22
  4. Step 4: Simplify right side
    155,942,185.70x = 20,228,521,733,707,804
  5. Step 5: Solve for x
    x = 20,228,521,733,707,804/155,942,185.70
  6. Step 6: Final answer
    x = 129,718,085.22

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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.