Home / 12,243,877.68-18,340,518.60-7,179,939.12

Finding the Fourth Proportional to 12,243,877.68, 18,340,518.60 and 7,179,939.12

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Solution

The fourth proportional to 12,243,877.68, 18,340,518.60 and 7,179,939.12 is: 10,755,073.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243,877.68 : 18,340,518.60 = 7,179,939.12 : x
  2. Step 2: Convert to fraction form
    12,243,877.68/18,340,518.60 = 7,179,939.12/x
  3. Step 3: Cross multiply
    12,243,877.68x = 18,340,518.60 × 7,179,939.12
  4. Step 4: Simplify right side
    12,243,877.68x = 131,683,806,977,227.64
  5. Step 5: Solve for x
    x = 131,683,806,977,227.64/12,243,877.68
  6. Step 6: Final answer
    x = 10,755,073.71

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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.