Home / 921,188,465.36-1,271,236,994.76-503,500,508.88

Finding the Fourth Proportional to 921,188,465.36, 1,271,236,994.76 and 503,500,508.88

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Solution

The fourth proportional to 921,188,465.36, 1,271,236,994.76 and 503,500,508.88 is: 694,829,014.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,188,465.36 : 1,271,236,994.76 = 503,500,508.88 : x
  2. Step 2: Convert to fraction form
    921,188,465.36/1,271,236,994.76 = 503,500,508.88/x
  3. Step 3: Cross multiply
    921,188,465.36x = 1,271,236,994.76 × 503,500,508.88
  4. Step 4: Simplify right side
    921,188,465.36x = 640,068,473,768,741,888
  5. Step 5: Solve for x
    x = 640,068,473,768,741,888/921,188,465.36
  6. Step 6: Final answer
    x = 694,829,014.73

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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.