Home / 12,956,067.40-19,424,769.90-7,278,032.20

Finding the Fourth Proportional to 12,956,067.40, 19,424,769.90 and 7,278,032.20

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Solution

The fourth proportional to 12,956,067.40, 19,424,769.90 and 7,278,032.20 is: 10,911,806.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956,067.40 : 19,424,769.90 = 7,278,032.20 : x
  2. Step 2: Convert to fraction form
    12,956,067.40/19,424,769.90 = 7,278,032.20/x
  3. Step 3: Cross multiply
    12,956,067.40x = 19,424,769.90 × 7,278,032.20
  4. Step 4: Simplify right side
    12,956,067.40x = 141,374,100,809,790.78
  5. Step 5: Solve for x
    x = 141,374,100,809,790.78/12,956,067.40
  6. Step 6: Final answer
    x = 10,911,806.53

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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.