Home / 137,179,785-189,308,310.63-74,455,905.48

Finding the Fourth Proportional to 137,179,785, 189,308,310.63 and 74,455,905.48

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Solution

The fourth proportional to 137,179,785, 189,308,310.63 and 74,455,905.48 is: 102,749,262.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,179,785 : 189,308,310.63 = 74,455,905.48 : x
  2. Step 2: Convert to fraction form
    137,179,785/189,308,310.63 = 74,455,905.48/x
  3. Step 3: Cross multiply
    137,179,785x = 189,308,310.63 × 74,455,905.48
  4. Step 4: Simplify right side
    137,179,785x = 14,095,121,682,845,760
  5. Step 5: Solve for x
    x = 14,095,121,682,845,760/137,179,785
  6. Step 6: Final answer
    x = 102,749,262.09

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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.