Home / 2,691,840.12-4,032,577.80-2,120,197.20

Finding the Fourth Proportional to 2,691,840.12, 4,032,577.80 and 2,120,197.20

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Solution

The fourth proportional to 2,691,840.12, 4,032,577.80 and 2,120,197.20 is: 3,176,213.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691,840.12 : 4,032,577.80 = 2,120,197.20 : x
  2. Step 2: Convert to fraction form
    2,691,840.12/4,032,577.80 = 2,120,197.20/x
  3. Step 3: Cross multiply
    2,691,840.12x = 4,032,577.80 × 2,120,197.20
  4. Step 4: Simplify right side
    2,691,840.12x = 8,549,860,160,342.16
  5. Step 5: Solve for x
    x = 8,549,860,160,342.16/2,691,840.12
  6. Step 6: Final answer
    x = 3,176,213.96

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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.