Home / 20,644,680.36-30,970,743.90-8,507,388.06

Finding the Fourth Proportional to 20,644,680.36, 30,970,743.90 and 8,507,388.06

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Solution

The fourth proportional to 20,644,680.36, 30,970,743.90 and 8,507,388.06 is: 12,762,616.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644,680.36 : 30,970,743.90 = 8,507,388.06 : x
  2. Step 2: Convert to fraction form
    20,644,680.36/30,970,743.90 = 8,507,388.06/x
  3. Step 3: Cross multiply
    20,644,680.36x = 30,970,743.90 × 8,507,388.06
  4. Step 4: Simplify right side
    20,644,680.36x = 263,480,136,864,177.84
  5. Step 5: Solve for x
    x = 263,480,136,864,177.84/20,644,680.36
  6. Step 6: Final answer
    x = 12,762,616.44

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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.