Home / 139,952,144.39-193,110,044.41-81,201,341.84

Finding the Fourth Proportional to 139,952,144.39, 193,110,044.41 and 81,201,341.84

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Solution

The fourth proportional to 139,952,144.39, 193,110,044.41 and 81,201,341.84 is: 112,043,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,952,144.39 : 193,110,044.41 = 81,201,341.84 : x
  2. Step 2: Convert to fraction form
    139,952,144.39/193,110,044.41 = 81,201,341.84/x
  3. Step 3: Cross multiply
    139,952,144.39x = 193,110,044.41 × 81,201,341.84
  4. Step 4: Simplify right side
    139,952,144.39x = 15,680,794,729,325,176
  5. Step 5: Solve for x
    x = 15,680,794,729,325,176/139,952,144.39
  6. Step 6: Final answer
    x = 112,043,976.16

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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.