Finding the Fourth Proportional to 221,477,609.20, 332,216,413.80 and 106,434,410.80
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Solution
The fourth proportional to 221,477,609.20, 332,216,413.80 and 106,434,410.80 is: 159,651,616.20
Step by Step Solution
- Step 1: Write the proportion equation
221,477,609.20 : 332,216,413.80 = 106,434,410.80 : x - Step 2: Convert to fraction form
221,477,609.20/332,216,413.80 = 106,434,410.80/x - Step 3: Cross multiply
221,477,609.20x = 332,216,413.80 × 106,434,410.80 - Step 4: Simplify right side
221,477,609.20x = 35,359,258,260,891,988 - Step 5: Solve for x
x = 35,359,258,260,891,988/221,477,609.20 - Step 6: Final answer
x = 159,651,616.20
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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.