Home / 12,956,177.76-19,434,211.26-5,278,110.12

Finding the Fourth Proportional to 12,956,177.76, 19,434,211.26 and 5,278,110.12

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Solution

The fourth proportional to 12,956,177.76, 19,434,211.26 and 5,278,110.12 is: 7,917,142.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956,177.76 : 19,434,211.26 = 5,278,110.12 : x
  2. Step 2: Convert to fraction form
    12,956,177.76/19,434,211.26 = 5,278,110.12/x
  3. Step 3: Cross multiply
    12,956,177.76x = 19,434,211.26 × 5,278,110.12
  4. Step 4: Simplify right side
    12,956,177.76x = 102,575,907,125,623.97
  5. Step 5: Solve for x
    x = 102,575,907,125,623.97/12,956,177.76
  6. Step 6: Final answer
    x = 7,917,142.62

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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.