Home / 839,809,076.80-1,259,713,615.20-529,872,685.60

Finding the Fourth Proportional to 839,809,076.80, 1,259,713,615.20 and 529,872,685.60

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Solution

The fourth proportional to 839,809,076.80, 1,259,713,615.20 and 529,872,685.60 is: 794,809,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,076.80 : 1,259,713,615.20 = 529,872,685.60 : x
  2. Step 2: Convert to fraction form
    839,809,076.80/1,259,713,615.20 = 529,872,685.60/x
  3. Step 3: Cross multiply
    839,809,076.80x = 1,259,713,615.20 × 529,872,685.60
  4. Step 4: Simplify right side
    839,809,076.80x = 667,487,836,372,909,056
  5. Step 5: Solve for x
    x = 667,487,836,372,909,056/839,809,076.80
  6. Step 6: Final answer
    x = 794,809,028.40

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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.