Finding the Fourth Proportional to 612,389,235.60, 918,583,853.40 and 440,202,351.60
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Solution
The fourth proportional to 612,389,235.60, 918,583,853.40 and 440,202,351.60 is: 660,303,527.40
Step by Step Solution
- Step 1: Write the proportion equation
612,389,235.60 : 918,583,853.40 = 440,202,351.60 : x - Step 2: Convert to fraction form
612,389,235.60/918,583,853.40 = 440,202,351.60/x - Step 3: Cross multiply
612,389,235.60x = 918,583,853.40 × 440,202,351.60 - Step 4: Simplify right side
612,389,235.60x = 404,362,772,408,469,696 - Step 5: Solve for x
x = 404,362,772,408,469,696/612,389,235.60 - Step 6: Final answer
x = 660,303,527.40
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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.