Home / 122,008,163.55-168,309,008.37-77,908,795.71

Finding the Fourth Proportional to 122,008,163.55, 168,309,008.37 and 77,908,795.71

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Solution

The fourth proportional to 122,008,163.55, 168,309,008.37 and 77,908,795.71 is: 107,474,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,008,163.55 : 168,309,008.37 = 77,908,795.71 : x
  2. Step 2: Convert to fraction form
    122,008,163.55/168,309,008.37 = 77,908,795.71/x
  3. Step 3: Cross multiply
    122,008,163.55x = 168,309,008.37 × 77,908,795.71
  4. Step 4: Simplify right side
    122,008,163.55x = 13,112,752,149,251,010
  5. Step 5: Solve for x
    x = 13,112,752,149,251,010/122,008,163.55
  6. Step 6: Final answer
    x = 107,474,383.42

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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.