Home / 392,509,833.86-541,667,153.04-216,304,151.47

Finding the Fourth Proportional to 392,509,833.86, 541,667,153.04 and 216,304,151.47

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Solution

The fourth proportional to 392,509,833.86, 541,667,153.04 and 216,304,151.47 is: 298,501,703.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,509,833.86 : 541,667,153.04 = 216,304,151.47 : x
  2. Step 2: Convert to fraction form
    392,509,833.86/541,667,153.04 = 216,304,151.47/x
  3. Step 3: Cross multiply
    392,509,833.86x = 541,667,153.04 × 216,304,151.47
  4. Step 4: Simplify right side
    392,509,833.86x = 117,164,853,917,487,824
  5. Step 5: Solve for x
    x = 117,164,853,917,487,824/392,509,833.86
  6. Step 6: Final answer
    x = 298,501,703.17

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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.