Home / 505,187,429.31-697,151,233.02-282,172,365.54

Finding the Fourth Proportional to 505,187,429.31, 697,151,233.02 and 282,172,365.54

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Solution

The fourth proportional to 505,187,429.31, 697,151,233.02 and 282,172,365.54 is: 389,393,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,187,429.31 : 697,151,233.02 = 282,172,365.54 : x
  2. Step 2: Convert to fraction form
    505,187,429.31/697,151,233.02 = 282,172,365.54/x
  3. Step 3: Cross multiply
    505,187,429.31x = 697,151,233.02 × 282,172,365.54
  4. Step 4: Simplify right side
    505,187,429.31x = 196,716,812,558,970,304
  5. Step 5: Solve for x
    x = 196,716,812,558,970,304/505,187,429.31
  6. Step 6: Final answer
    x = 389,393,720.32

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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.