Home / 78,081,379.14-107,752,313.25-43,276,316.58

Finding the Fourth Proportional to 78,081,379.14, 107,752,313.25 and 43,276,316.58

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Solution

The fourth proportional to 78,081,379.14, 107,752,313.25 and 43,276,316.58 is: 59,721,322.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,081,379.14 : 107,752,313.25 = 43,276,316.58 : x
  2. Step 2: Convert to fraction form
    78,081,379.14/107,752,313.25 = 43,276,316.58/x
  3. Step 3: Cross multiply
    78,081,379.14x = 107,752,313.25 × 43,276,316.58
  4. Step 4: Simplify right side
    78,081,379.14x = 4,663,123,220,434,328
  5. Step 5: Solve for x
    x = 4,663,123,220,434,328/78,081,379.14
  6. Step 6: Final answer
    x = 59,721,322.44

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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.