Home / 470,436,789.80-649,203,304.31-261,588,448.42

Finding the Fourth Proportional to 470,436,789.80, 649,203,304.31 and 261,588,448.42

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Solution

The fourth proportional to 470,436,789.80, 649,203,304.31 and 261,588,448.42 is: 360,992,355.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,436,789.80 : 649,203,304.31 = 261,588,448.42 : x
  2. Step 2: Convert to fraction form
    470,436,789.80/649,203,304.31 = 261,588,448.42/x
  3. Step 3: Cross multiply
    470,436,789.80x = 649,203,304.31 × 261,588,448.42
  4. Step 4: Simplify right side
    470,436,789.80x = 169,824,085,081,640,000
  5. Step 5: Solve for x
    x = 169,824,085,081,640,000/470,436,789.80
  6. Step 6: Final answer
    x = 360,992,355.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.