Home / 12,867,174.82-19,304,497.74-5,186,856.07

Finding the Fourth Proportional to 12,867,174.82, 19,304,497.74 and 5,186,856.07

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Solution

The fourth proportional to 12,867,174.82, 19,304,497.74 and 5,186,856.07 is: 7,781,789.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867,174.82 : 19,304,497.74 = 5,186,856.07 : x
  2. Step 2: Convert to fraction form
    12,867,174.82/19,304,497.74 = 5,186,856.07/x
  3. Step 3: Cross multiply
    12,867,174.82x = 19,304,497.74 × 5,186,856.07
  4. Step 4: Simplify right side
    12,867,174.82x = 100,129,651,281,020.28
  5. Step 5: Solve for x
    x = 100,129,651,281,020.28/12,867,174.82
  6. Step 6: Final answer
    x = 7,781,789.92

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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.