Home / 13,380,175,142.72-20,074,864,078.56-7,864,048,197.44

Finding the Fourth Proportional to 13,380,175,142.72, 20,074,864,078.56 and 7,864,048,197.44

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Solution

The fourth proportional to 13,380,175,142.72, 20,074,864,078.56 and 7,864,048,197.44 is: 11,798,776,696.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380,175,142.72 : 20,074,864,078.56 = 7,864,048,197.44 : x
  2. Step 2: Convert to fraction form
    13,380,175,142.72/20,074,864,078.56 = 7,864,048,197.44/x
  3. Step 3: Cross multiply
    13,380,175,142.72x = 20,074,864,078.56 × 7,864,048,197.44
  4. Step 4: Simplify right side
    13,380,175,142.72x = 157,869,698,670,852,767,744
  5. Step 5: Solve for x
    x = 157,869,698,670,852,767,744/13,380,175,142.72
  6. Step 6: Final answer
    x = 11,798,776,696.64

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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.