Home / 108,344,076.05-149,512,939.43-65,942,308.53

Finding the Fourth Proportional to 108,344,076.05, 149,512,939.43 and 65,942,308.53

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Solution

The fourth proportional to 108,344,076.05, 149,512,939.43 and 65,942,308.53 is: 90,999,238.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,344,076.05 : 149,512,939.43 = 65,942,308.53 : x
  2. Step 2: Convert to fraction form
    108,344,076.05/149,512,939.43 = 65,942,308.53/x
  3. Step 3: Cross multiply
    108,344,076.05x = 149,512,939.43 × 65,942,308.53
  4. Step 4: Simplify right side
    108,344,076.05x = 9,859,228,381,285,118
  5. Step 5: Solve for x
    x = 9,859,228,381,285,118/108,344,076.05
  6. Step 6: Final answer
    x = 90,999,238.18

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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.