Home / 2,086,415,999.80-3,129,623,999.70-1,351,751,961.40

Finding the Fourth Proportional to 2,086,415,999.80, 3,129,623,999.70 and 1,351,751,961.40

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Solution

The fourth proportional to 2,086,415,999.80, 3,129,623,999.70 and 1,351,751,961.40 is: 2,027,627,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086,415,999.80 : 3,129,623,999.70 = 1,351,751,961.40 : x
  2. Step 2: Convert to fraction form
    2,086,415,999.80/3,129,623,999.70 = 1,351,751,961.40/x
  3. Step 3: Cross multiply
    2,086,415,999.80x = 3,129,623,999.70 × 1,351,751,961.40
  4. Step 4: Simplify right side
    2,086,415,999.80x = 4,230,475,380,038,988,288
  5. Step 5: Solve for x
    x = 4,230,475,380,038,988,288/2,086,415,999.80
  6. Step 6: Final answer
    x = 2,027,627,942.10

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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.