Home / 8,121,189,188.45-12,173,186,112.06-2,731,699,236.35

Finding the Fourth Proportional to 8,121,189,188.45, 12,173,186,112.06 and 2,731,699,236.35

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Solution

The fourth proportional to 8,121,189,188.45, 12,173,186,112.06 and 2,731,699,236.35 is: 4,094,656,882.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121,189,188.45 : 12,173,186,112.06 = 2,731,699,236.35 : x
  2. Step 2: Convert to fraction form
    8,121,189,188.45/12,173,186,112.06 = 2,731,699,236.35/x
  3. Step 3: Cross multiply
    8,121,189,188.45x = 12,173,186,112.06 × 2,731,699,236.35
  4. Step 4: Simplify right side
    8,121,189,188.45x = 33,253,483,206,302,085,120
  5. Step 5: Solve for x
    x = 33,253,483,206,302,085,120/8,121,189,188.45
  6. Step 6: Final answer
    x = 4,094,656,882.71

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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.