Home / 711,176,307.20-1,066,764,460.80-419,744,268.80

Finding the Fourth Proportional to 711,176,307.20, 1,066,764,460.80 and 419,744,268.80

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Solution

The fourth proportional to 711,176,307.20, 1,066,764,460.80 and 419,744,268.80 is: 629,616,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,176,307.20 : 1,066,764,460.80 = 419,744,268.80 : x
  2. Step 2: Convert to fraction form
    711,176,307.20/1,066,764,460.80 = 419,744,268.80/x
  3. Step 3: Cross multiply
    711,176,307.20x = 1,066,764,460.80 × 419,744,268.80
  4. Step 4: Simplify right side
    711,176,307.20x = 447,768,268,580,322,240
  5. Step 5: Solve for x
    x = 447,768,268,580,322,240/711,176,307.20
  6. Step 6: Final answer
    x = 629,616,403.20

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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.