Home / 680,206,643.94-1,020,471,867.09-220,144,813.86

Finding the Fourth Proportional to 680,206,643.94, 1,020,471,867.09 and 220,144,813.86

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Solution

The fourth proportional to 680,206,643.94, 1,020,471,867.09 and 220,144,813.86 is: 330,269,619.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,206,643.94 : 1,020,471,867.09 = 220,144,813.86 : x
  2. Step 2: Convert to fraction form
    680,206,643.94/1,020,471,867.09 = 220,144,813.86/x
  3. Step 3: Cross multiply
    680,206,643.94x = 1,020,471,867.09 × 220,144,813.86
  4. Step 4: Simplify right side
    680,206,643.94x = 224,651,589,229,894,720
  5. Step 5: Solve for x
    x = 224,651,589,229,894,720/680,206,643.94
  6. Step 6: Final answer
    x = 330,269,619.14

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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.