Finding the Fourth Proportional to 4,912,226.18, 6,778,713.20 and 2,819,413.12
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Solution
The fourth proportional to 4,912,226.18, 6,778,713.20 and 2,819,413.12 is: 3,890,698.88
Step by Step Solution
- Step 1: Write the proportion equation
4,912,226.18 : 6,778,713.20 = 2,819,413.12 : x - Step 2: Convert to fraction form
4,912,226.18/6,778,713.20 = 2,819,413.12/x - Step 3: Cross multiply
4,912,226.18x = 6,778,713.20 × 2,819,413.12 - Step 4: Simplify right side
4,912,226.18x = 19,111,992,884,806.55 - Step 5: Solve for x
x = 19,111,992,884,806.55/4,912,226.18 - Step 6: Final answer
x = 3,890,698.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.