Home / 12,751,961.40-19,165,266.90-11,109,670.20

Finding the Fourth Proportional to 12,751,961.40, 19,165,266.90 and 11,109,670.20

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Solution

The fourth proportional to 12,751,961.40, 19,165,266.90 and 11,109,670.20 is: 16,697,023.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,751,961.40 : 19,165,266.90 = 11,109,670.20 : x
  2. Step 2: Convert to fraction form
    12,751,961.40/19,165,266.90 = 11,109,670.20/x
  3. Step 3: Cross multiply
    12,751,961.40x = 19,165,266.90 × 11,109,670.20
  4. Step 4: Simplify right side
    12,751,961.40x = 212,919,794,553,976.34
  5. Step 5: Solve for x
    x = 212,919,794,553,976.34/12,751,961.40
  6. Step 6: Final answer
    x = 16,697,023.14

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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.