Home / 3,978,915,691.20-5,968,373,536.80-1,180,985,114.40

Finding the Fourth Proportional to 3,978,915,691.20, 5,968,373,536.80 and 1,180,985,114.40

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Solution

The fourth proportional to 3,978,915,691.20, 5,968,373,536.80 and 1,180,985,114.40 is: 1,771,477,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,915,691.20 : 5,968,373,536.80 = 1,180,985,114.40 : x
  2. Step 2: Convert to fraction form
    3,978,915,691.20/5,968,373,536.80 = 1,180,985,114.40/x
  3. Step 3: Cross multiply
    3,978,915,691.20x = 5,968,373,536.80 × 1,180,985,114.40
  4. Step 4: Simplify right side
    3,978,915,691.20x = 7,048,560,304,139,681,792
  5. Step 5: Solve for x
    x = 7,048,560,304,139,681,792/3,978,915,691.20
  6. Step 6: Final answer
    x = 1,771,477,671.60

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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.