Home / 90,637,586.38-135,685,393.19-55,512,101.64

Finding the Fourth Proportional to 90,637,586.38, 135,685,393.19 and 55,512,101.64

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Solution

The fourth proportional to 90,637,586.38, 135,685,393.19 and 55,512,101.64 is: 83,102,183.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,637,586.38 : 135,685,393.19 = 55,512,101.64 : x
  2. Step 2: Convert to fraction form
    90,637,586.38/135,685,393.19 = 55,512,101.64/x
  3. Step 3: Cross multiply
    90,637,586.38x = 135,685,393.19 × 55,512,101.64
  4. Step 4: Simplify right side
    90,637,586.38x = 7,532,181,338,036,577
  5. Step 5: Solve for x
    x = 7,532,181,338,036,577/90,637,586.38
  6. Step 6: Final answer
    x = 83,102,183.53

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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.