Home / 807,138,310.80-1,210,707,466.20-611,993,175.60

Finding the Fourth Proportional to 807,138,310.80, 1,210,707,466.20 and 611,993,175.60

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Solution

The fourth proportional to 807,138,310.80, 1,210,707,466.20 and 611,993,175.60 is: 917,989,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,138,310.80 : 1,210,707,466.20 = 611,993,175.60 : x
  2. Step 2: Convert to fraction form
    807,138,310.80/1,210,707,466.20 = 611,993,175.60/x
  3. Step 3: Cross multiply
    807,138,310.80x = 1,210,707,466.20 × 611,993,175.60
  4. Step 4: Simplify right side
    807,138,310.80x = 740,944,706,962,367,744
  5. Step 5: Solve for x
    x = 740,944,706,962,367,744/807,138,310.80
  6. Step 6: Final answer
    x = 917,989,763.40

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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.