Home / 66,072,867-91,183,146.83-45,208,661.55

Finding the Fourth Proportional to 66,072,867, 91,183,146.83 and 45,208,661.55

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Solution

The fourth proportional to 66,072,867, 91,183,146.83 and 45,208,661.55 is: 62,389,725.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,072,867 : 91,183,146.83 = 45,208,661.55 : x
  2. Step 2: Convert to fraction form
    66,072,867/91,183,146.83 = 45,208,661.55/x
  3. Step 3: Cross multiply
    66,072,867x = 91,183,146.83 × 45,208,661.55
  4. Step 4: Simplify right side
    66,072,867x = 4,122,268,024,101,425
  5. Step 5: Solve for x
    x = 4,122,268,024,101,425/66,072,867
  6. Step 6: Final answer
    x = 62,389,725.33

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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.