Home / 711,177,159.20-1,066,765,738.80-419,745,120.80

Finding the Fourth Proportional to 711,177,159.20, 1,066,765,738.80 and 419,745,120.80

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Solution

The fourth proportional to 711,177,159.20, 1,066,765,738.80 and 419,745,120.80 is: 629,617,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,177,159.20 : 1,066,765,738.80 = 419,745,120.80 : x
  2. Step 2: Convert to fraction form
    711,177,159.20/1,066,765,738.80 = 419,745,120.80/x
  3. Step 3: Cross multiply
    711,177,159.20x = 1,066,765,738.80 × 419,745,120.80
  4. Step 4: Simplify right side
    711,177,159.20x = 447,769,713,897,907,264
  5. Step 5: Solve for x
    x = 447,769,713,897,907,264/711,177,159.20
  6. Step 6: Final answer
    x = 629,617,681.20

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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.