Home / 20,138,662.90-30,219,804.15-7,360,459.30

Finding the Fourth Proportional to 20,138,662.90, 30,219,804.15 and 7,360,459.30

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Solution

The fourth proportional to 20,138,662.90, 30,219,804.15 and 7,360,459.30 is: 11,045,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138,662.90 : 30,219,804.15 = 7,360,459.30 : x
  2. Step 2: Convert to fraction form
    20,138,662.90/30,219,804.15 = 7,360,459.30/x
  3. Step 3: Cross multiply
    20,138,662.90x = 30,219,804.15 × 7,360,459.30
  4. Step 4: Simplify right side
    20,138,662.90x = 222,431,638,500,046.09
  5. Step 5: Solve for x
    x = 222,431,638,500,046.09/20,138,662.90
  6. Step 6: Final answer
    x = 11,045,005.30

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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.