Home / 805,101,301.20-1,207,651,951.80-345,085,971.60

Finding the Fourth Proportional to 805,101,301.20, 1,207,651,951.80 and 345,085,971.60

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Solution

The fourth proportional to 805,101,301.20, 1,207,651,951.80 and 345,085,971.60 is: 517,628,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,101,301.20 : 1,207,651,951.80 = 345,085,971.60 : x
  2. Step 2: Convert to fraction form
    805,101,301.20/1,207,651,951.80 = 345,085,971.60/x
  3. Step 3: Cross multiply
    805,101,301.20x = 1,207,651,951.80 × 345,085,971.60
  4. Step 4: Simplify right side
    805,101,301.20x = 416,743,747,141,539,392
  5. Step 5: Solve for x
    x = 416,743,747,141,539,392/805,101,301.20
  6. Step 6: Final answer
    x = 517,628,957.40

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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.