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Finding the Fourth Proportional to 18,326,829.22, 27,490,269.34 and 7,807,791.15

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Solution

The fourth proportional to 18,326,829.22, 27,490,269.34 and 7,807,791.15 is: 11,711,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326,829.22 : 27,490,269.34 = 7,807,791.15 : x
  2. Step 2: Convert to fraction form
    18,326,829.22/27,490,269.34 = 7,807,791.15/x
  3. Step 3: Cross multiply
    18,326,829.22x = 27,490,269.34 × 7,807,791.15
  4. Step 4: Simplify right side
    18,326,829.22x = 214,638,281,673,728.09
  5. Step 5: Solve for x
    x = 214,638,281,673,728.09/18,326,829.22
  6. Step 6: Final answer
    x = 11,711,697.60

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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.