Home / 12,900,930.48-17,803,278.91-7,099,712.21

Finding the Fourth Proportional to 12,900,930.48, 17,803,278.91 and 7,099,712.21

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Solution

The fourth proportional to 12,900,930.48, 17,803,278.91 and 7,099,712.21 is: 9,797,600.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,930.48 : 17,803,278.91 = 7,099,712.21 : x
  2. Step 2: Convert to fraction form
    12,900,930.48/17,803,278.91 = 7,099,712.21/x
  3. Step 3: Cross multiply
    12,900,930.48x = 17,803,278.91 × 7,099,712.21
  4. Step 4: Simplify right side
    12,900,930.48x = 126,398,156,708,745.33
  5. Step 5: Solve for x
    x = 126,398,156,708,745.33/12,900,930.48
  6. Step 6: Final answer
    x = 9,797,600.02

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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.