Home / 772,907,338.80-1,066,587,825.60-420,474,300.84

Finding the Fourth Proportional to 772,907,338.80, 1,066,587,825.60 and 420,474,300.84

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Solution

The fourth proportional to 772,907,338.80, 1,066,587,825.60 and 420,474,300.84 is: 580,241,314.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,907,338.80 : 1,066,587,825.60 = 420,474,300.84 : x
  2. Step 2: Convert to fraction form
    772,907,338.80/1,066,587,825.60 = 420,474,300.84/x
  3. Step 3: Cross multiply
    772,907,338.80x = 1,066,587,825.60 × 420,474,300.84
  4. Step 4: Simplify right side
    772,907,338.80x = 448,472,770,253,615,808
  5. Step 5: Solve for x
    x = 448,472,770,253,615,808/772,907,338.80
  6. Step 6: Final answer
    x = 580,241,314.50

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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.