Home / 198,570,416,413.99-297,853,661,756.61-90,974,167,665.31

Finding the Fourth Proportional to 198,570,416,413.99, 297,853,661,756.61 and 90,974,167,665.31

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Solution

The fourth proportional to 198,570,416,413.99, 297,853,661,756.61 and 90,974,167,665.31 is: 136,460,352,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,570,416,413.99 : 297,853,661,756.61 = 90,974,167,665.31 : x
  2. Step 2: Convert to fraction form
    198,570,416,413.99/297,853,661,756.61 = 90,974,167,665.31/x
  3. Step 3: Cross multiply
    198,570,416,413.99x = 297,853,661,756.61 × 90,974,167,665.31
  4. Step 4: Simplify right side
    198,570,416,413.99x = 27,096,988,964,372,965,490,688
  5. Step 5: Solve for x
    x = 27,096,988,964,372,965,490,688/198,570,416,413.99
  6. Step 6: Final answer
    x = 136,460,352,220.24

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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.