Home / 12,114,638.20-18,181,871.70-12,020,159.80

Finding the Fourth Proportional to 12,114,638.20, 18,181,871.70 and 12,020,159.80

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Solution

The fourth proportional to 12,114,638.20, 18,181,871.70 and 12,020,159.80 is: 18,040,076.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114,638.20 : 18,181,871.70 = 12,020,159.80 : x
  2. Step 2: Convert to fraction form
    12,114,638.20/18,181,871.70 = 12,020,159.80/x
  3. Step 3: Cross multiply
    12,114,638.20x = 18,181,871.70 × 12,020,159.80
  4. Step 4: Simplify right side
    12,114,638.20x = 218,549,003,297,097.66
  5. Step 5: Solve for x
    x = 218,549,003,297,097.66/12,114,638.20
  6. Step 6: Final answer
    x = 18,040,076.78

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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.