Home / 12,930,719.88-19,390,458.12-3,706,660.92

Finding the Fourth Proportional to 12,930,719.88, 19,390,458.12 and 3,706,660.92

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Solution

The fourth proportional to 12,930,719.88, 19,390,458.12 and 3,706,660.92 is: 5,558,379.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930,719.88 : 19,390,458.12 = 3,706,660.92 : x
  2. Step 2: Convert to fraction form
    12,930,719.88/19,390,458.12 = 3,706,660.92/x
  3. Step 3: Cross multiply
    12,930,719.88x = 19,390,458.12 × 3,706,660.92
  4. Step 4: Simplify right side
    12,930,719.88x = 71,873,853,334,300.67
  5. Step 5: Solve for x
    x = 71,873,853,334,300.67/12,930,719.88
  6. Step 6: Final answer
    x = 5,558,379.89

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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.