Home / 117,117,890.82-161,622,691.08-64,910,289.51

Finding the Fourth Proportional to 117,117,890.82, 161,622,691.08 and 64,910,289.51

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Solution

The fourth proportional to 117,117,890.82, 161,622,691.08 and 64,910,289.51 is: 89,576,200.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,117,890.82 : 161,622,691.08 = 64,910,289.51 : x
  2. Step 2: Convert to fraction form
    117,117,890.82/161,622,691.08 = 64,910,289.51/x
  3. Step 3: Cross multiply
    117,117,890.82x = 161,622,691.08 × 64,910,289.51
  4. Step 4: Simplify right side
    117,117,890.82x = 10,490,975,669,388,096
  5. Step 5: Solve for x
    x = 10,490,975,669,388,096/117,117,890.82
  6. Step 6: Final answer
    x = 89,576,200.49

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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.