Home / 523,302,168.89-722,172,397.37-288,367,963

Finding the Fourth Proportional to 523,302,168.89, 722,172,397.37 and 288,367,963

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Solution

The fourth proportional to 523,302,168.89, 722,172,397.37 and 288,367,963 is: 397,956,277.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,302,168.89 : 722,172,397.37 = 288,367,963 : x
  2. Step 2: Convert to fraction form
    523,302,168.89/722,172,397.37 = 288,367,963/x
  3. Step 3: Cross multiply
    523,302,168.89x = 722,172,397.37 × 288,367,963
  4. Step 4: Simplify right side
    523,302,168.89x = 208,251,383,164,413,472
  5. Step 5: Solve for x
    x = 208,251,383,164,413,472/523,302,168.89
  6. Step 6: Final answer
    x = 397,956,277.55

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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.