Home / 139,757,728.32-192,866,430.24-81,055,188

Finding the Fourth Proportional to 139,757,728.32, 192,866,430.24 and 81,055,188

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Solution

The fourth proportional to 139,757,728.32, 192,866,430.24 and 81,055,188 is: 111,856,603.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,757,728.32 : 192,866,430.24 = 81,055,188 : x
  2. Step 2: Convert to fraction form
    139,757,728.32/192,866,430.24 = 81,055,188/x
  3. Step 3: Cross multiply
    139,757,728.32x = 192,866,430.24 × 81,055,188
  4. Step 4: Simplify right side
    139,757,728.32x = 15,632,824,761,992,086
  5. Step 5: Solve for x
    x = 15,632,824,761,992,086/139,757,728.32
  6. Step 6: Final answer
    x = 111,856,603.21

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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.