Home / 800,255,755.69-1,199,143,998.19-555,089,031.61

Finding the Fourth Proportional to 800,255,755.69, 1,199,143,998.19 and 555,089,031.61

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Solution

The fourth proportional to 800,255,755.69, 1,199,143,998.19 and 555,089,031.61 is: 831,773,687.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,255,755.69 : 1,199,143,998.19 = 555,089,031.61 : x
  2. Step 2: Convert to fraction form
    800,255,755.69/1,199,143,998.19 = 555,089,031.61/x
  3. Step 3: Cross multiply
    800,255,755.69x = 1,199,143,998.19 × 555,089,031.61
  4. Step 4: Simplify right side
    800,255,755.69x = 665,631,680,713,898,880
  5. Step 5: Solve for x
    x = 665,631,680,713,898,880/800,255,755.69
  6. Step 6: Final answer
    x = 831,773,687.33

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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.