Home / 680,222,708.55-1,020,334,062.83-291,979,470.15

Finding the Fourth Proportional to 680,222,708.55, 1,020,334,062.83 and 291,979,470.15

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Solution

The fourth proportional to 680,222,708.55, 1,020,334,062.83 and 291,979,470.15 is: 437,969,205.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,222,708.55 : 1,020,334,062.83 = 291,979,470.15 : x
  2. Step 2: Convert to fraction form
    680,222,708.55/1,020,334,062.83 = 291,979,470.15/x
  3. Step 3: Cross multiply
    680,222,708.55x = 1,020,334,062.83 × 291,979,470.15
  4. Step 4: Simplify right side
    680,222,708.55x = 297,916,599,039,640,320
  5. Step 5: Solve for x
    x = 297,916,599,039,640,320/680,222,708.55
  6. Step 6: Final answer
    x = 437,969,205.23

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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.