Home / 1,987,081,212.88-2,742,190,208.55-1,095,039,945.76

Finding the Fourth Proportional to 1,987,081,212.88, 2,742,190,208.55 and 1,095,039,945.76

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Solution

The fourth proportional to 1,987,081,212.88, 2,742,190,208.55 and 1,095,039,945.76 is: 1,511,165,118.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,081,212.88 : 2,742,190,208.55 = 1,095,039,945.76 : x
  2. Step 2: Convert to fraction form
    1,987,081,212.88/2,742,190,208.55 = 1,095,039,945.76/x
  3. Step 3: Cross multiply
    1,987,081,212.88x = 2,742,190,208.55 × 1,095,039,945.76
  4. Step 4: Simplify right side
    1,987,081,212.88x = 3,002,807,817,234,195,456
  5. Step 5: Solve for x
    x = 3,002,807,817,234,195,456/1,987,081,212.88
  6. Step 6: Final answer
    x = 1,511,165,118.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.