Home / 12,654,831,387.76-18,968,959,296.52-4,257,821,799.48

Finding the Fourth Proportional to 12,654,831,387.76, 18,968,959,296.52 and 4,257,821,799.48

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Solution

The fourth proportional to 12,654,831,387.76, 18,968,959,296.52 and 4,257,821,799.48 is: 6,382,261,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654,831,387.76 : 18,968,959,296.52 = 4,257,821,799.48 : x
  2. Step 2: Convert to fraction form
    12,654,831,387.76/18,968,959,296.52 = 4,257,821,799.48/x
  3. Step 3: Cross multiply
    12,654,831,387.76x = 18,968,959,296.52 × 4,257,821,799.48
  4. Step 4: Simplify right side
    12,654,831,387.76x = 80,766,448,406,171,664,384
  5. Step 5: Solve for x
    x = 80,766,448,406,171,664,384/12,654,831,387.76
  6. Step 6: Final answer
    x = 6,382,261,914.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.