Finding the Third Proportional to 18,428,924 and 39,990,405
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Solution
The third proportional to 18,428,924 and 39,990,405 is: 86,778,397.48
Step by Step Solution
- Step 1: Write the proportion equation
18,428,924 : 39,990,405 = 39,990,405 : x - Step 2: Convert to fraction form
18,428,924/39,990,405 = 39,990,405/x - Step 3: Cross multiply
18,428,924x = 39,990,405 × 39,990,405 - Step 4: Simplify right side
18,428,924x = 1,599,232,492,064,025 - Step 5: Solve for x
x = 1,599,232,492,064,025/18,428,924 - Step 6: Final answer
x = 86,778,397.48
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These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.