Home / 13,862,868.36-19,129,474.42-7,667,781.72

Finding the Fourth Proportional to 13,862,868.36, 19,129,474.42 and 7,667,781.72

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Solution

The fourth proportional to 13,862,868.36, 19,129,474.42 and 7,667,781.72 is: 10,580,828.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862,868.36 : 19,129,474.42 = 7,667,781.72 : x
  2. Step 2: Convert to fraction form
    13,862,868.36/19,129,474.42 = 7,667,781.72/x
  3. Step 3: Cross multiply
    13,862,868.36x = 19,129,474.42 × 7,667,781.72
  4. Step 4: Simplify right side
    13,862,868.36x = 146,680,634,270,883.62
  5. Step 5: Solve for x
    x = 146,680,634,270,883.62/13,862,868.36
  6. Step 6: Final answer
    x = 10,580,828.62

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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.