Home / 138,846,236.37-191,627,325.96-85,939,913.79

Finding the Fourth Proportional to 138,846,236.37, 191,627,325.96 and 85,939,913.79

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Solution

The fourth proportional to 138,846,236.37, 191,627,325.96 and 85,939,913.79 is: 118,609,162.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,846,236.37 : 191,627,325.96 = 85,939,913.79 : x
  2. Step 2: Convert to fraction form
    138,846,236.37/191,627,325.96 = 85,939,913.79/x
  3. Step 3: Cross multiply
    138,846,236.37x = 191,627,325.96 × 85,939,913.79
  4. Step 4: Simplify right side
    138,846,236.37x = 16,468,435,872,488,356
  5. Step 5: Solve for x
    x = 16,468,435,872,488,356/138,846,236.37
  6. Step 6: Final answer
    x = 118,609,162.94

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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.