Home / 839,782,776.77-1,259,627,081.63-257,515,423.83

Finding the Fourth Proportional to 839,782,776.77, 1,259,627,081.63 and 257,515,423.83

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Solution

The fourth proportional to 839,782,776.77, 1,259,627,081.63 and 257,515,423.83 is: 386,258,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,782,776.77 : 1,259,627,081.63 = 257,515,423.83 : x
  2. Step 2: Convert to fraction form
    839,782,776.77/1,259,627,081.63 = 257,515,423.83/x
  3. Step 3: Cross multiply
    839,782,776.77x = 1,259,627,081.63 × 257,515,423.83
  4. Step 4: Simplify right side
    839,782,776.77x = 324,373,401,792,407,872
  5. Step 5: Solve for x
    x = 324,373,401,792,407,872/839,782,776.77
  6. Step 6: Final answer
    x = 386,258,697.80

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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.