Finding the Third Proportional to 128,169,522 and 198,587,268
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Solution
The third proportional to 128,169,522 and 198,587,268 is: 307,693,298.66
Step by Step Solution
- Step 1: Write the proportion equation
128,169,522 : 198,587,268 = 198,587,268 : x - Step 2: Convert to fraction form
128,169,522/198,587,268 = 198,587,268/x - Step 3: Cross multiply
128,169,522x = 198,587,268 × 198,587,268 - Step 4: Simplify right side
128,169,522x = 39,436,903,011,703,824 - Step 5: Solve for x
x = 39,436,903,011,703,824/128,169,522 - Step 6: Final answer
x = 307,693,298.66
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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.