Home / 805,101,310.20-1,207,651,965.30-345,085,980.60

Finding the Fourth Proportional to 805,101,310.20, 1,207,651,965.30 and 345,085,980.60

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Solution

The fourth proportional to 805,101,310.20, 1,207,651,965.30 and 345,085,980.60 is: 517,628,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,101,310.20 : 1,207,651,965.30 = 345,085,980.60 : x
  2. Step 2: Convert to fraction form
    805,101,310.20/1,207,651,965.30 = 345,085,980.60/x
  3. Step 3: Cross multiply
    805,101,310.20x = 1,207,651,965.30 × 345,085,980.60
  4. Step 4: Simplify right side
    805,101,310.20x = 416,743,762,669,067,712
  5. Step 5: Solve for x
    x = 416,743,762,669,067,712/805,101,310.20
  6. Step 6: Final answer
    x = 517,628,970.90

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1.5x scale

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.