Home / 3,985,904,752.40-5,978,857,128.60-2,149,244,656.40

Finding the Fourth Proportional to 3,985,904,752.40, 5,978,857,128.60 and 2,149,244,656.40

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Solution

The fourth proportional to 3,985,904,752.40, 5,978,857,128.60 and 2,149,244,656.40 is: 3,223,866,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,904,752.40 : 5,978,857,128.60 = 2,149,244,656.40 : x
  2. Step 2: Convert to fraction form
    3,985,904,752.40/5,978,857,128.60 = 2,149,244,656.40/x
  3. Step 3: Cross multiply
    3,985,904,752.40x = 5,978,857,128.60 × 2,149,244,656.40
  4. Step 4: Simplify right side
    3,985,904,752.40x = 12,850,026,735,022,598,144
  5. Step 5: Solve for x
    x = 12,850,026,735,022,598,144/3,985,904,752.40
  6. Step 6: Final answer
    x = 3,223,866,984.60

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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.