Home / 387,071,773.80-534,158,812.35-213,231,517.80

Finding the Fourth Proportional to 387,071,773.80, 534,158,812.35 and 213,231,517.80

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Solution

The fourth proportional to 387,071,773.80, 534,158,812.35 and 213,231,517.80 is: 294,259,364.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,071,773.80 : 534,158,812.35 = 213,231,517.80 : x
  2. Step 2: Convert to fraction form
    387,071,773.80/534,158,812.35 = 213,231,517.80/x
  3. Step 3: Cross multiply
    387,071,773.80x = 534,158,812.35 × 213,231,517.80
  4. Step 4: Simplify right side
    387,071,773.80x = 113,899,494,303,635,904
  5. Step 5: Solve for x
    x = 113,899,494,303,635,904/387,071,773.80
  6. Step 6: Final answer
    x = 294,259,364.83

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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.