Home / 122,008,178.28-168,309,028.68-77,908,810.44

Finding the Fourth Proportional to 122,008,178.28, 168,309,028.68 and 77,908,810.44

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Solution

The fourth proportional to 122,008,178.28, 168,309,028.68 and 77,908,810.44 is: 107,474,403.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,008,178.28 : 168,309,028.68 = 77,908,810.44 : x
  2. Step 2: Convert to fraction form
    122,008,178.28/168,309,028.68 = 77,908,810.44/x
  3. Step 3: Cross multiply
    122,008,178.28x = 168,309,028.68 × 77,908,810.44
  4. Step 4: Simplify right side
    122,008,178.28x = 13,112,756,210,770,644
  5. Step 5: Solve for x
    x = 13,112,756,210,770,644/122,008,178.28
  6. Step 6: Final answer
    x = 107,474,403.73

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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.