Home / 850,991,728.80-1,276,529,583.60-442,845,040.80

Finding the Fourth Proportional to 850,991,728.80, 1,276,529,583.60 and 442,845,040.80

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Solution

The fourth proportional to 850,991,728.80, 1,276,529,583.60 and 442,845,040.80 is: 664,289,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,991,728.80 : 1,276,529,583.60 = 442,845,040.80 : x
  2. Step 2: Convert to fraction form
    850,991,728.80/1,276,529,583.60 = 442,845,040.80/x
  3. Step 3: Cross multiply
    850,991,728.80x = 1,276,529,583.60 × 442,845,040.80
  4. Step 4: Simplify right side
    850,991,728.80x = 565,304,795,531,748,992
  5. Step 5: Solve for x
    x = 565,304,795,531,748,992/850,991,728.80
  6. Step 6: Final answer
    x = 664,289,412.46

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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.