Home / 68,157,237,787.32-102,246,842,449.62-20,993,689,741.80

Finding the Fourth Proportional to 68,157,237,787.32, 102,246,842,449.62 and 20,993,689,741.80

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Solution

The fourth proportional to 68,157,237,787.32, 102,246,842,449.62 and 20,993,689,741.80 is: 31,493,918,432.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,157,237,787.32 : 102,246,842,449.62 = 20,993,689,741.80 : x
  2. Step 2: Convert to fraction form
    68,157,237,787.32/102,246,842,449.62 = 20,993,689,741.80/x
  3. Step 3: Cross multiply
    68,157,237,787.32x = 102,246,842,449.62 × 20,993,689,741.80
  4. Step 4: Simplify right side
    68,157,237,787.32x = 2,146,538,487,466,027,909,120
  5. Step 5: Solve for x
    x = 2,146,538,487,466,027,909,120/68,157,237,787.32
  6. Step 6: Final answer
    x = 31,493,918,432.61

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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.