Home / 12,390,187.84-18,578,900.13-5,560,906.49

Finding the Fourth Proportional to 12,390,187.84, 18,578,900.13 and 5,560,906.49

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Solution

The fourth proportional to 12,390,187.84, 18,578,900.13 and 5,560,906.49 is: 8,338,495.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,187.84 : 18,578,900.13 = 5,560,906.49 : x
  2. Step 2: Convert to fraction form
    12,390,187.84/18,578,900.13 = 5,560,906.49/x
  3. Step 3: Cross multiply
    12,390,187.84x = 18,578,900.13 × 5,560,906.49
  4. Step 4: Simplify right side
    12,390,187.84x = 103,315,526,309,978.84
  5. Step 5: Solve for x
    x = 103,315,526,309,978.84/12,390,187.84
  6. Step 6: Final answer
    x = 8,338,495.56

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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.