Home / 77,324,579.05-106,707,168.86-42,042,383.66

Finding the Fourth Proportional to 77,324,579.05, 106,707,168.86 and 42,042,383.66

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Solution

The fourth proportional to 77,324,579.05, 106,707,168.86 and 42,042,383.66 is: 58,018,081.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,324,579.05 : 106,707,168.86 = 42,042,383.66 : x
  2. Step 2: Convert to fraction form
    77,324,579.05/106,707,168.86 = 42,042,383.66/x
  3. Step 3: Cross multiply
    77,324,579.05x = 106,707,168.86 × 42,042,383.66
  4. Step 4: Simplify right side
    77,324,579.05x = 4,486,223,732,056,095
  5. Step 5: Solve for x
    x = 4,486,223,732,056,095/77,324,579.05
  6. Step 6: Final answer
    x = 58,018,081.54

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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.