Home / 138,219,576-207,363,464.88-41,174,906.40

Finding the Fourth Proportional to 138,219,576, 207,363,464.88 and 41,174,906.40

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Solution

The fourth proportional to 138,219,576, 207,363,464.88 and 41,174,906.40 is: 61,772,518.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,219,576 : 207,363,464.88 = 41,174,906.40 : x
  2. Step 2: Convert to fraction form
    138,219,576/207,363,464.88 = 41,174,906.40/x
  3. Step 3: Cross multiply
    138,219,576x = 207,363,464.88 × 41,174,906.40
  4. Step 4: Simplify right side
    138,219,576x = 8,538,171,257,213,687
  5. Step 5: Solve for x
    x = 8,538,171,257,213,687/138,219,576
  6. Step 6: Final answer
    x = 61,772,518.08

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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.