Home / 12,090,018.30-18,135,027.45-10,515,378.30

Finding the Fourth Proportional to 12,090,018.30, 18,135,027.45 and 10,515,378.30

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Solution

The fourth proportional to 12,090,018.30, 18,135,027.45 and 10,515,378.30 is: 15,773,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090,018.30 : 18,135,027.45 = 10,515,378.30 : x
  2. Step 2: Convert to fraction form
    12,090,018.30/18,135,027.45 = 10,515,378.30/x
  3. Step 3: Cross multiply
    12,090,018.30x = 18,135,027.45 × 10,515,378.30
  4. Step 4: Simplify right side
    12,090,018.30x = 190,696,674,117,634.34
  5. Step 5: Solve for x
    x = 190,696,674,117,634.34/12,090,018.30
  6. Step 6: Final answer
    x = 15,773,067.45

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Similar ratio
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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.