Home / 388,010,376,071.64-535,253,755,691.52-245,522,285,823.96

Finding the Fourth Proportional to 388,010,376,071.64, 535,253,755,691.52 and 245,522,285,823.96

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Solution

The fourth proportional to 388,010,376,071.64, 535,253,755,691.52 and 245,522,285,823.96 is: 338,693,843,509.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,010,376,071.64 : 535,253,755,691.52 = 245,522,285,823.96 : x
  2. Step 2: Convert to fraction form
    388,010,376,071.64/535,253,755,691.52 = 245,522,285,823.96/x
  3. Step 3: Cross multiply
    388,010,376,071.64x = 535,253,755,691.52 × 245,522,285,823.96
  4. Step 4: Simplify right side
    388,010,376,071.64x = 131,416,725,593,241,426,067,456
  5. Step 5: Solve for x
    x = 131,416,725,593,241,426,067,456/388,010,376,071.64
  6. Step 6: Final answer
    x = 338,693,843,509.43

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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.