Home / 78,502,439.40-108,333,371.32-43,694,382.56

Finding the Fourth Proportional to 78,502,439.40, 108,333,371.32 and 43,694,382.56

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Solution

The fourth proportional to 78,502,439.40, 108,333,371.32 and 43,694,382.56 is: 60,298,250.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,502,439.40 : 108,333,371.32 = 43,694,382.56 : x
  2. Step 2: Convert to fraction form
    78,502,439.40/108,333,371.32 = 43,694,382.56/x
  3. Step 3: Cross multiply
    78,502,439.40x = 108,333,371.32 × 43,694,382.56
  4. Step 4: Simplify right side
    78,502,439.40x = 4,733,559,770,470,612
  5. Step 5: Solve for x
    x = 4,733,559,770,470,612/78,502,439.40
  6. Step 6: Final answer
    x = 60,298,250.69

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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.