Home / 78,397,325.07-117,570,811.79-25,863,187.41

Finding the Fourth Proportional to 78,397,325.07, 117,570,811.79 and 25,863,187.41

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Solution

The fourth proportional to 78,397,325.07, 117,570,811.79 and 25,863,187.41 is: 38,786,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,397,325.07 : 117,570,811.79 = 25,863,187.41 : x
  2. Step 2: Convert to fraction form
    78,397,325.07/117,570,811.79 = 25,863,187.41/x
  3. Step 3: Cross multiply
    78,397,325.07x = 117,570,811.79 × 25,863,187.41
  4. Step 4: Simplify right side
    78,397,325.07x = 3,040,755,939,270,608
  5. Step 5: Solve for x
    x = 3,040,755,939,270,608/78,397,325.07
  6. Step 6: Final answer
    x = 38,786,475.64

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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.