Home / 12,372,939.80-18,543,663.30-11,018,749.40

Finding the Fourth Proportional to 12,372,939.80, 18,543,663.30 and 11,018,749.40

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Solution

The fourth proportional to 12,372,939.80, 18,543,663.30 and 11,018,749.40 is: 16,514,101.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372,939.80 : 18,543,663.30 = 11,018,749.40 : x
  2. Step 2: Convert to fraction form
    12,372,939.80/18,543,663.30 = 11,018,749.40/x
  3. Step 3: Cross multiply
    12,372,939.80x = 18,543,663.30 × 11,018,749.40
  4. Step 4: Simplify right side
    12,372,939.80x = 204,327,978,860,677.03
  5. Step 5: Solve for x
    x = 204,327,978,860,677.03/12,372,939.80
  6. Step 6: Final answer
    x = 16,514,101.11

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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.