Home / 489,644,997.40-734,467,496.10-162,171,053.20

Finding the Fourth Proportional to 489,644,997.40, 734,467,496.10 and 162,171,053.20

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Solution

The fourth proportional to 489,644,997.40, 734,467,496.10 and 162,171,053.20 is: 243,256,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,644,997.40 : 734,467,496.10 = 162,171,053.20 : x
  2. Step 2: Convert to fraction form
    489,644,997.40/734,467,496.10 = 162,171,053.20/x
  3. Step 3: Cross multiply
    489,644,997.40x = 734,467,496.10 × 162,171,053.20
  4. Step 4: Simplify right side
    489,644,997.40x = 119,109,367,383,703,888
  5. Step 5: Solve for x
    x = 119,109,367,383,703,888/489,644,997.40
  6. Step 6: Final answer
    x = 243,256,579.80

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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.