Home / 139,163,144.67-192,039,878.34-77,287,469.04

Finding the Fourth Proportional to 139,163,144.67, 192,039,878.34 and 77,287,469.04

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Solution

The fourth proportional to 139,163,144.67, 192,039,878.34 and 77,287,469.04 is: 106,653,785.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,144.67 : 192,039,878.34 = 77,287,469.04 : x
  2. Step 2: Convert to fraction form
    139,163,144.67/192,039,878.34 = 77,287,469.04/x
  3. Step 3: Cross multiply
    139,163,144.67x = 192,039,878.34 × 77,287,469.04
  4. Step 4: Simplify right side
    139,163,144.67x = 14,842,276,151,648,118
  5. Step 5: Solve for x
    x = 14,842,276,151,648,118/139,163,144.67
  6. Step 6: Final answer
    x = 106,653,785.29

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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.