Home / 21,309,688.78-31,954,595.38-11,071,796.24

Finding the Fourth Proportional to 21,309,688.78, 31,954,595.38 and 11,071,796.24

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Solution

The fourth proportional to 21,309,688.78, 31,954,595.38 and 11,071,796.24 is: 16,602,531.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309,688.78 : 31,954,595.38 = 11,071,796.24 : x
  2. Step 2: Convert to fraction form
    21,309,688.78/31,954,595.38 = 11,071,796.24/x
  3. Step 3: Cross multiply
    21,309,688.78x = 31,954,595.38 × 11,071,796.24
  4. Step 4: Simplify right side
    21,309,688.78x = 353,794,769,031,212.38
  5. Step 5: Solve for x
    x = 353,794,769,031,212.38/21,309,688.78
  6. Step 6: Final answer
    x = 16,602,531.02

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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.