Home / 12,143,387.76-18,212,398.08-3,505,610.88

Finding the Fourth Proportional to 12,143,387.76, 18,212,398.08 and 3,505,610.88

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Solution

The fourth proportional to 12,143,387.76, 18,212,398.08 and 3,505,610.88 is: 5,257,641.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143,387.76 : 18,212,398.08 = 3,505,610.88 : x
  2. Step 2: Convert to fraction form
    12,143,387.76/18,212,398.08 = 3,505,610.88/x
  3. Step 3: Cross multiply
    12,143,387.76x = 18,212,398.08 × 3,505,610.88
  4. Step 4: Simplify right side
    12,143,387.76x = 63,845,580,860,139.10
  5. Step 5: Solve for x
    x = 63,845,580,860,139.10/12,143,387.76
  6. Step 6: Final answer
    x = 5,257,641.62

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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.