Home / 143,820,680.82-198,472,453.98-77,741,180.13

Finding the Fourth Proportional to 143,820,680.82, 198,472,453.98 and 77,741,180.13

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Solution

The fourth proportional to 143,820,680.82, 198,472,453.98 and 77,741,180.13 is: 107,282,782.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,820,680.82 : 198,472,453.98 = 77,741,180.13 : x
  2. Step 2: Convert to fraction form
    143,820,680.82/198,472,453.98 = 77,741,180.13/x
  3. Step 3: Cross multiply
    143,820,680.82x = 198,472,453.98 × 77,741,180.13
  4. Step 4: Simplify right side
    143,820,680.82x = 15,429,482,795,702,314
  5. Step 5: Solve for x
    x = 15,429,482,795,702,314/143,820,680.82
  6. Step 6: Final answer
    x = 107,282,782.34

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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.