Home / 12,138,090.96-18,194,418.35-5,655,821.98

Finding the Fourth Proportional to 12,138,090.96, 18,194,418.35 and 5,655,821.98

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Solution

The fourth proportional to 12,138,090.96, 18,194,418.35 and 5,655,821.98 is: 8,477,806.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,090.96 : 18,194,418.35 = 5,655,821.98 : x
  2. Step 2: Convert to fraction form
    12,138,090.96/18,194,418.35 = 5,655,821.98/x
  3. Step 3: Cross multiply
    12,138,090.96x = 18,194,418.35 × 5,655,821.98
  4. Step 4: Simplify right side
    12,138,090.96x = 102,904,391,217,245.34
  5. Step 5: Solve for x
    x = 102,904,391,217,245.34/12,138,090.96
  6. Step 6: Final answer
    x = 8,477,806.89

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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.