Home / 138,586,935.66-191,247,656.31-76,705,945.62

Finding the Fourth Proportional to 138,586,935.66, 191,247,656.31 and 76,705,945.62

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Solution

The fourth proportional to 138,586,935.66, 191,247,656.31 and 76,705,945.62 is: 105,852,923.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,586,935.66 : 191,247,656.31 = 76,705,945.62 : x
  2. Step 2: Convert to fraction form
    138,586,935.66/191,247,656.31 = 76,705,945.62/x
  3. Step 3: Cross multiply
    138,586,935.66x = 191,247,656.31 × 76,705,945.62
  4. Step 4: Simplify right side
    138,586,935.66x = 14,669,832,324,867,310
  5. Step 5: Solve for x
    x = 14,669,832,324,867,310/138,586,935.66
  6. Step 6: Final answer
    x = 105,852,923.69

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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.