Home / 117,139,628.82-161,652,408.84-64,216,242.48

Finding the Fourth Proportional to 117,139,628.82, 161,652,408.84 and 64,216,242.48

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Solution

The fourth proportional to 117,139,628.82, 161,652,408.84 and 64,216,242.48 is: 88,618,261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,139,628.82 : 161,652,408.84 = 64,216,242.48 : x
  2. Step 2: Convert to fraction form
    117,139,628.82/161,652,408.84 = 64,216,242.48/x
  3. Step 3: Cross multiply
    117,139,628.82x = 161,652,408.84 × 64,216,242.48
  4. Step 4: Simplify right side
    117,139,628.82x = 10,380,710,283,545,536
  5. Step 5: Solve for x
    x = 10,380,710,283,545,536/117,139,628.82
  6. Step 6: Final answer
    x = 88,618,261.71

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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.