Home / 81,872,061,556.56-122,810,594,219.40-28,088,442,712.56

Finding the Fourth Proportional to 81,872,061,556.56, 122,810,594,219.40 and 28,088,442,712.56

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Solution

The fourth proportional to 81,872,061,556.56, 122,810,594,219.40 and 28,088,442,712.56 is: 42,133,522,408.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,872,061,556.56 : 122,810,594,219.40 = 28,088,442,712.56 : x
  2. Step 2: Convert to fraction form
    81,872,061,556.56/122,810,594,219.40 = 28,088,442,712.56/x
  3. Step 3: Cross multiply
    81,872,061,556.56x = 122,810,594,219.40 × 28,088,442,712.56
  4. Step 4: Simplify right side
    81,872,061,556.56x = 3,449,558,340,227,069,116,416
  5. Step 5: Solve for x
    x = 3,449,558,340,227,069,116,416/81,872,061,556.56
  6. Step 6: Final answer
    x = 42,133,522,408.54

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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.