Home / 877,649,162.37-1,211,157,462.78-475,761,668.37

Finding the Fourth Proportional to 877,649,162.37, 1,211,157,462.78 and 475,761,668.37

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Solution

The fourth proportional to 877,649,162.37, 1,211,157,462.78 and 475,761,668.37 is: 656,551,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,649,162.37 : 1,211,157,462.78 = 475,761,668.37 : x
  2. Step 2: Convert to fraction form
    877,649,162.37/1,211,157,462.78 = 475,761,668.37/x
  3. Step 3: Cross multiply
    877,649,162.37x = 1,211,157,462.78 × 475,761,668.37
  4. Step 4: Simplify right side
    877,649,162.37x = 576,222,295,150,988,992
  5. Step 5: Solve for x
    x = 576,222,295,150,988,992/877,649,162.37
  6. Step 6: Final answer
    x = 656,551,979.83

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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.