Home / 807,731,383.20-1,211,597,074.80-262,528,029.60

Finding the Fourth Proportional to 807,731,383.20, 1,211,597,074.80 and 262,528,029.60

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Solution

The fourth proportional to 807,731,383.20, 1,211,597,074.80 and 262,528,029.60 is: 393,792,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,731,383.20 : 1,211,597,074.80 = 262,528,029.60 : x
  2. Step 2: Convert to fraction form
    807,731,383.20/1,211,597,074.80 = 262,528,029.60/x
  3. Step 3: Cross multiply
    807,731,383.20x = 1,211,597,074.80 × 262,528,029.60
  4. Step 4: Simplify right side
    807,731,383.20x = 318,078,192,716,367,808
  5. Step 5: Solve for x
    x = 318,078,192,716,367,808/807,731,383.20
  6. Step 6: Final answer
    x = 393,792,044.40

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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.