Home / 12,917,228.76-19,383,472.14-4,719,142.20

Finding the Fourth Proportional to 12,917,228.76, 19,383,472.14 and 4,719,142.20

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Solution

The fourth proportional to 12,917,228.76, 19,383,472.14 and 4,719,142.20 is: 7,081,500.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917,228.76 : 19,383,472.14 = 4,719,142.20 : x
  2. Step 2: Convert to fraction form
    12,917,228.76/19,383,472.14 = 4,719,142.20/x
  3. Step 3: Cross multiply
    12,917,228.76x = 19,383,472.14 × 4,719,142.20
  4. Step 4: Simplify right side
    12,917,228.76x = 91,473,361,358,398.31
  5. Step 5: Solve for x
    x = 91,473,361,358,398.31/12,917,228.76
  6. Step 6: Final answer
    x = 7,081,500.46

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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.