Home / 3,985,848,010.40-5,978,772,015.60-2,126,229,663.20

Finding the Fourth Proportional to 3,985,848,010.40, 5,978,772,015.60 and 2,126,229,663.20

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Solution

The fourth proportional to 3,985,848,010.40, 5,978,772,015.60 and 2,126,229,663.20 is: 3,189,344,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,848,010.40 : 5,978,772,015.60 = 2,126,229,663.20 : x
  2. Step 2: Convert to fraction form
    3,985,848,010.40/5,978,772,015.60 = 2,126,229,663.20/x
  3. Step 3: Cross multiply
    3,985,848,010.40x = 5,978,772,015.60 × 2,126,229,663.20
  4. Step 4: Simplify right side
    3,985,848,010.40x = 12,712,242,409,078,773,760
  5. Step 5: Solve for x
    x = 12,712,242,409,078,773,760/3,985,848,010.40
  6. Step 6: Final answer
    x = 3,189,344,494.80

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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.