Home / 505,306,471.05-758,032,009.77-155,582,129.58

Finding the Fourth Proportional to 505,306,471.05, 758,032,009.77 and 155,582,129.58

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Solution

The fourth proportional to 505,306,471.05, 758,032,009.77 and 155,582,129.58 is: 233,395,456.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,306,471.05 : 758,032,009.77 = 155,582,129.58 : x
  2. Step 2: Convert to fraction form
    505,306,471.05/758,032,009.77 = 155,582,129.58/x
  3. Step 3: Cross multiply
    505,306,471.05x = 758,032,009.77 × 155,582,129.58
  4. Step 4: Simplify right side
    505,306,471.05x = 117,936,234,369,823,968
  5. Step 5: Solve for x
    x = 117,936,234,369,823,968/505,306,471.05
  6. Step 6: Final answer
    x = 233,395,456.28

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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.