Finding the Fourth Proportional to 5,209,135.77, 7,813,998.92 and 1,615,413.63
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Solution
The fourth proportional to 5,209,135.77, 7,813,998.92 and 1,615,413.63 is: 2,423,212.01
Step by Step Solution
- Step 1: Write the proportion equation
5,209,135.77 : 7,813,998.92 = 1,615,413.63 : x - Step 2: Convert to fraction form
5,209,135.77/7,813,998.92 = 1,615,413.63/x - Step 3: Cross multiply
5,209,135.77x = 7,813,998.92 × 1,615,413.63 - Step 4: Simplify right side
5,209,135.77x = 12,622,840,360,173.28 - Step 5: Solve for x
x = 12,622,840,360,173.28/5,209,135.77 - Step 6: Final answer
x = 2,423,212.01
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1.5x scale
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.