Home / 711,176,808.20-1,066,765,212.30-419,744,769.80

Finding the Fourth Proportional to 711,176,808.20, 1,066,765,212.30 and 419,744,769.80

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Solution

The fourth proportional to 711,176,808.20, 1,066,765,212.30 and 419,744,769.80 is: 629,617,154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,176,808.20 : 1,066,765,212.30 = 419,744,769.80 : x
  2. Step 2: Convert to fraction form
    711,176,808.20/1,066,765,212.30 = 419,744,769.80/x
  3. Step 3: Cross multiply
    711,176,808.20x = 1,066,765,212.30 × 419,744,769.80
  4. Step 4: Simplify right side
    711,176,808.20x = 447,769,118,467,511,616
  5. Step 5: Solve for x
    x = 447,769,118,467,511,616/711,176,808.20
  6. Step 6: Final answer
    x = 629,617,154.70

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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.