Finding the Third Proportional to 198,941,258 and 428,115,616
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Solution
The third proportional to 198,941,258 and 428,115,616 is: 921,291,955.75
Step by Step Solution
- Step 1: Write the proportion equation
198,941,258 : 428,115,616 = 428,115,616 : x - Step 2: Convert to fraction form
198,941,258/428,115,616 = 428,115,616/x - Step 3: Cross multiply
198,941,258x = 428,115,616 × 428,115,616 - Step 4: Simplify right side
198,941,258x = 183,282,980,663,059,456 - Step 5: Solve for x
x = 183,282,980,663,059,456/198,941,258 - Step 6: Final answer
x = 921,291,955.75
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.