Home / 20,275,452.90-27,979,548.17-11,902,688.23

Finding the Fourth Proportional to 20,275,452.90, 27,979,548.17 and 11,902,688.23

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Solution

The fourth proportional to 20,275,452.90, 27,979,548.17 and 11,902,688.23 is: 16,425,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275,452.90 : 27,979,548.17 = 11,902,688.23 : x
  2. Step 2: Convert to fraction form
    20,275,452.90/27,979,548.17 = 11,902,688.23/x
  3. Step 3: Cross multiply
    20,275,452.90x = 27,979,548.17 × 11,902,688.23
  4. Step 4: Simplify right side
    20,275,452.90x = 333,031,838,683,777.06
  5. Step 5: Solve for x
    x = 333,031,838,683,777.06/20,275,452.90
  6. Step 6: Final answer
    x = 16,425,371.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.