Home / 90,189,712.38-135,301,420.89-41,009,177.82

Finding the Fourth Proportional to 90,189,712.38, 135,301,420.89 and 41,009,177.82

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Solution

The fourth proportional to 90,189,712.38, 135,301,420.89 and 41,009,177.82 is: 61,521,429.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,189,712.38 : 135,301,420.89 = 41,009,177.82 : x
  2. Step 2: Convert to fraction form
    90,189,712.38/135,301,420.89 = 41,009,177.82/x
  3. Step 3: Cross multiply
    90,189,712.38x = 135,301,420.89 × 41,009,177.82
  4. Step 4: Simplify right side
    90,189,712.38x = 5,548,600,028,576,672
  5. Step 5: Solve for x
    x = 5,548,600,028,576,672/90,189,712.38
  6. Step 6: Final answer
    x = 61,521,429.46

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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.