Home / 1,120,365,321.60-1,679,414,241.60-660,066,556.80

Finding the Fourth Proportional to 1,120,365,321.60, 1,679,414,241.60 and 660,066,556.80

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Solution

The fourth proportional to 1,120,365,321.60, 1,679,414,241.60 and 660,066,556.80 is: 989,431,888.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,365,321.60 : 1,679,414,241.60 = 660,066,556.80 : x
  2. Step 2: Convert to fraction form
    1,120,365,321.60/1,679,414,241.60 = 660,066,556.80/x
  3. Step 3: Cross multiply
    1,120,365,321.60x = 1,679,414,241.60 × 660,066,556.80
  4. Step 4: Simplify right side
    1,120,365,321.60x = 1,108,525,175,893,795,200
  5. Step 5: Solve for x
    x = 1,108,525,175,893,795,200/1,120,365,321.60
  6. Step 6: Final answer
    x = 989,431,888.44

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1.5x scale

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.