Home / 139,091,832.86-191,955,667.66-80,356,973.54

Finding the Fourth Proportional to 139,091,832.86, 191,955,667.66 and 80,356,973.54

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Solution

The fourth proportional to 139,091,832.86, 191,955,667.66 and 80,356,973.54 is: 110,897,787.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,091,832.86 : 191,955,667.66 = 80,356,973.54 : x
  2. Step 2: Convert to fraction form
    139,091,832.86/191,955,667.66 = 80,356,973.54/x
  3. Step 3: Cross multiply
    139,091,832.86x = 191,955,667.66 × 80,356,973.54
  4. Step 4: Simplify right side
    139,091,832.86x = 15,424,976,505,846,982
  5. Step 5: Solve for x
    x = 15,424,976,505,846,982/139,091,832.86
  6. Step 6: Final answer
    x = 110,897,787.38

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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.