Home / 78,952,942.20-118,429,413.30-33,508,831.80

Finding the Fourth Proportional to 78,952,942.20, 118,429,413.30 and 33,508,831.80

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Solution

The fourth proportional to 78,952,942.20, 118,429,413.30 and 33,508,831.80 is: 50,263,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,952,942.20 : 118,429,413.30 = 33,508,831.80 : x
  2. Step 2: Convert to fraction form
    78,952,942.20/118,429,413.30 = 33,508,831.80/x
  3. Step 3: Cross multiply
    78,952,942.20x = 118,429,413.30 × 33,508,831.80
  4. Step 4: Simplify right side
    78,952,942.20x = 3,968,431,290,442,383
  5. Step 5: Solve for x
    x = 3,968,431,290,442,383/78,952,942.20
  6. Step 6: Final answer
    x = 50,263,247.70

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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.