Home / 1,384,174,856.62-1,910,173,212.29-789,489,450.55

Finding the Fourth Proportional to 1,384,174,856.62, 1,910,173,212.29 and 789,489,450.55

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Solution

The fourth proportional to 1,384,174,856.62, 1,910,173,212.29 and 789,489,450.55 is: 1,089,502,234.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,174,856.62 : 1,910,173,212.29 = 789,489,450.55 : x
  2. Step 2: Convert to fraction form
    1,384,174,856.62/1,910,173,212.29 = 789,489,450.55/x
  3. Step 3: Cross multiply
    1,384,174,856.62x = 1,910,173,212.29 × 789,489,450.55
  4. Step 4: Simplify right side
    1,384,174,856.62x = 1,508,061,599,823,358,976
  5. Step 5: Solve for x
    x = 1,508,061,599,823,358,976/1,384,174,856.62
  6. Step 6: Final answer
    x = 1,089,502,234.93

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1.5x scale

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.