Home / 680,206,642.44-1,020,471,864.84-220,144,812.36

Finding the Fourth Proportional to 680,206,642.44, 1,020,471,864.84 and 220,144,812.36

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Solution

The fourth proportional to 680,206,642.44, 1,020,471,864.84 and 220,144,812.36 is: 330,269,616.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,206,642.44 : 1,020,471,864.84 = 220,144,812.36 : x
  2. Step 2: Convert to fraction form
    680,206,642.44/1,020,471,864.84 = 220,144,812.36/x
  3. Step 3: Cross multiply
    680,206,642.44x = 1,020,471,864.84 × 220,144,812.36
  4. Step 4: Simplify right side
    680,206,642.44x = 224,651,587,203,861,088
  5. Step 5: Solve for x
    x = 224,651,587,203,861,088/680,206,642.44
  6. Step 6: Final answer
    x = 330,269,616.89

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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.