Home / 13,644,951.12-20,434,796.64-7,870,178.70

Finding the Fourth Proportional to 13,644,951.12, 20,434,796.64 and 7,870,178.70

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Solution

The fourth proportional to 13,644,951.12, 20,434,796.64 and 7,870,178.70 is: 11,786,447.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644,951.12 : 20,434,796.64 = 7,870,178.70 : x
  2. Step 2: Convert to fraction form
    13,644,951.12/20,434,796.64 = 7,870,178.70/x
  3. Step 3: Cross multiply
    13,644,951.12x = 20,434,796.64 × 7,870,178.70
  4. Step 4: Simplify right side
    13,644,951.12x = 160,825,501,254,959.56
  5. Step 5: Solve for x
    x = 160,825,501,254,959.56/13,644,951.12
  6. Step 6: Final answer
    x = 11,786,447.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.