Home / 828,144,413.70-1,242,216,620.55-245,968,512.90

Finding the Fourth Proportional to 828,144,413.70, 1,242,216,620.55 and 245,968,512.90

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Solution

The fourth proportional to 828,144,413.70, 1,242,216,620.55 and 245,968,512.90 is: 368,952,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,144,413.70 : 1,242,216,620.55 = 245,968,512.90 : x
  2. Step 2: Convert to fraction form
    828,144,413.70/1,242,216,620.55 = 245,968,512.90/x
  3. Step 3: Cross multiply
    828,144,413.70x = 1,242,216,620.55 × 245,968,512.90
  4. Step 4: Simplify right side
    828,144,413.70x = 305,546,174,856,347,072
  5. Step 5: Solve for x
    x = 305,546,174,856,347,072/828,144,413.70
  6. Step 6: Final answer
    x = 368,952,769.35

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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.