Home / 921,707,965,257.30-1,271,929,378,729.70-510,193,311,771.64

Finding the Fourth Proportional to 921,707,965,257.30, 1,271,929,378,729.70 and 510,193,311,771.64

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Solution

The fourth proportional to 921,707,965,257.30, 1,271,929,378,729.70 and 510,193,311,771.64 is: 704,051,485,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,707,965,257.30 : 1,271,929,378,729.70 = 510,193,311,771.64 : x
  2. Step 2: Convert to fraction form
    921,707,965,257.30/1,271,929,378,729.70 = 510,193,311,771.64/x
  3. Step 3: Cross multiply
    921,707,965,257.30x = 1,271,929,378,729.70 × 510,193,311,771.64
  4. Step 4: Simplify right side
    921,707,965,257.30x = 648,929,862,073,750,170,632,192
  5. Step 5: Solve for x
    x = 648,929,862,073,750,170,632,192/921,707,965,257.30
  6. Step 6: Final answer
    x = 704,051,485,431.83

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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.