Home / 77,305,606.89-116,013,734.17-28,121,365.12

Finding the Fourth Proportional to 77,305,606.89, 116,013,734.17 and 28,121,365.12

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Solution

The fourth proportional to 77,305,606.89, 116,013,734.17 and 28,121,365.12 is: 42,202,172.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,305,606.89 : 116,013,734.17 = 28,121,365.12 : x
  2. Step 2: Convert to fraction form
    77,305,606.89/116,013,734.17 = 28,121,365.12/x
  3. Step 3: Cross multiply
    77,305,606.89x = 116,013,734.17 × 28,121,365.12
  4. Step 4: Simplify right side
    77,305,606.89x = 3,262,464,577,458,887
  5. Step 5: Solve for x
    x = 3,262,464,577,458,887/77,305,606.89
  6. Step 6: Final answer
    x = 42,202,172.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.