Home / 215,012,977.32-296,743,099-122,207,435.48

Finding the Fourth Proportional to 215,012,977.32, 296,743,099 and 122,207,435.48

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Solution

The fourth proportional to 215,012,977.32, 296,743,099 and 122,207,435.48 is: 168,660,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,012,977.32 : 296,743,099 = 122,207,435.48 : x
  2. Step 2: Convert to fraction form
    215,012,977.32/296,743,099 = 122,207,435.48/x
  3. Step 3: Cross multiply
    215,012,977.32x = 296,743,099 × 122,207,435.48
  4. Step 4: Simplify right side
    215,012,977.32x = 36,264,213,125,177,752
  5. Step 5: Solve for x
    x = 36,264,213,125,177,752/215,012,977.32
  6. Step 6: Final answer
    x = 168,660,578.43

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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.