Home / 312,103,138.20-468,012,989.70-117,950,026.20

Finding the Fourth Proportional to 312,103,138.20, 468,012,989.70 and 117,950,026.20

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Solution

The fourth proportional to 312,103,138.20, 468,012,989.70 and 117,950,026.20 is: 176,871,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,103,138.20 : 468,012,989.70 = 117,950,026.20 : x
  2. Step 2: Convert to fraction form
    312,103,138.20/468,012,989.70 = 117,950,026.20/x
  3. Step 3: Cross multiply
    312,103,138.20x = 468,012,989.70 × 117,950,026.20
  4. Step 4: Simplify right side
    312,103,138.20x = 55,202,144,397,055,328
  5. Step 5: Solve for x
    x = 55,202,144,397,055,328/312,103,138.20
  6. Step 6: Final answer
    x = 176,871,481.38

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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.