Home / 78,502,434.39-108,333,364.41-43,694,377.56

Finding the Fourth Proportional to 78,502,434.39, 108,333,364.41 and 43,694,377.56

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Solution

The fourth proportional to 78,502,434.39, 108,333,364.41 and 43,694,377.56 is: 60,298,243.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,502,434.39 : 108,333,364.41 = 43,694,377.56 : x
  2. Step 2: Convert to fraction form
    78,502,434.39/108,333,364.41 = 43,694,377.56/x
  3. Step 3: Cross multiply
    78,502,434.39x = 108,333,364.41 × 43,694,377.56
  4. Step 4: Simplify right side
    78,502,434.39x = 4,733,558,926,875,607
  5. Step 5: Solve for x
    x = 4,733,558,926,875,607/78,502,434.39
  6. Step 6: Final answer
    x = 60,298,243.79

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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.