Home / 139,655,619.33-192,695,268.54-80,914,707.51

Finding the Fourth Proportional to 139,655,619.33, 192,695,268.54 and 80,914,707.51

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Solution

The fourth proportional to 139,655,619.33, 192,695,268.54 and 80,914,707.51 is: 111,645,212.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,655,619.33 : 192,695,268.54 = 80,914,707.51 : x
  2. Step 2: Convert to fraction form
    139,655,619.33/192,695,268.54 = 80,914,707.51/x
  3. Step 3: Cross multiply
    139,655,619.33x = 192,695,268.54 × 80,914,707.51
  4. Step 4: Simplify right side
    139,655,619.33x = 15,591,881,292,475,006
  5. Step 5: Solve for x
    x = 15,591,881,292,475,006/139,655,619.33
  6. Step 6: Final answer
    x = 111,645,212.47

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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.