Home / 12,146,958.20-18,199,442.10-7,884,932.60

Finding the Fourth Proportional to 12,146,958.20, 18,199,442.10 and 7,884,932.60

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Solution

The fourth proportional to 12,146,958.20, 18,199,442.10 and 7,884,932.60 is: 11,813,770.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146,958.20 : 18,199,442.10 = 7,884,932.60 : x
  2. Step 2: Convert to fraction form
    12,146,958.20/18,199,442.10 = 7,884,932.60/x
  3. Step 3: Cross multiply
    12,146,958.20x = 18,199,442.10 × 7,884,932.60
  4. Step 4: Simplify right side
    12,146,958.20x = 143,501,374,316,102.47
  5. Step 5: Solve for x
    x = 143,501,374,316,102.47/12,146,958.20
  6. Step 6: Final answer
    x = 11,813,770.32

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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.