Finding the Fourth Proportional to 560,421,413.28, 840,632,139.36 and 408,037,201.92
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Solution
The fourth proportional to 560,421,413.28, 840,632,139.36 and 408,037,201.92 is: 612,055,817.03
Step by Step Solution
- Step 1: Write the proportion equation
560,421,413.28 : 840,632,139.36 = 408,037,201.92 : x - Step 2: Convert to fraction form
560,421,413.28/840,632,139.36 = 408,037,201.92/x - Step 3: Cross multiply
560,421,413.28x = 840,632,139.36 × 408,037,201.92 - Step 4: Simplify right side
560,421,413.28x = 343,009,185,988,477,888 - Step 5: Solve for x
x = 343,009,185,988,477,888/560,421,413.28 - Step 6: Final answer
x = 612,055,817.03
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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.