Home / 55,058,900.45-75,979,543.39-30,279,010.82

Finding the Fourth Proportional to 55,058,900.45, 75,979,543.39 and 30,279,010.82

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Solution

The fourth proportional to 55,058,900.45, 75,979,543.39 and 30,279,010.82 is: 41,784,078.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,058,900.45 : 75,979,543.39 = 30,279,010.82 : x
  2. Step 2: Convert to fraction form
    55,058,900.45/75,979,543.39 = 30,279,010.82/x
  3. Step 3: Cross multiply
    55,058,900.45x = 75,979,543.39 × 30,279,010.82
  4. Step 4: Simplify right side
    55,058,900.45x = 2,300,585,415,948,874.50
  5. Step 5: Solve for x
    x = 2,300,585,415,948,874.50/55,058,900.45
  6. Step 6: Final answer
    x = 41,784,078.46

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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.