Home / 406,946,413.80-610,419,620.70-391,074,042.60

Finding the Fourth Proportional to 406,946,413.80, 610,419,620.70 and 391,074,042.60

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Solution

The fourth proportional to 406,946,413.80, 610,419,620.70 and 391,074,042.60 is: 586,611,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,946,413.80 : 610,419,620.70 = 391,074,042.60 : x
  2. Step 2: Convert to fraction form
    406,946,413.80/610,419,620.70 = 391,074,042.60/x
  3. Step 3: Cross multiply
    406,946,413.80x = 610,419,620.70 × 391,074,042.60
  4. Step 4: Simplify right side
    406,946,413.80x = 238,719,268,749,507,680
  5. Step 5: Solve for x
    x = 238,719,268,749,507,680/406,946,413.80
  6. Step 6: Final answer
    x = 586,611,063.90

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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.