Finding the Third Proportional to 18,486,220 and 39,895,368
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Solution
The third proportional to 18,486,220 and 39,895,368 is: 86,098,747.49
Step by Step Solution
- Step 1: Write the proportion equation
18,486,220 : 39,895,368 = 39,895,368 : x - Step 2: Convert to fraction form
18,486,220/39,895,368 = 39,895,368/x - Step 3: Cross multiply
18,486,220x = 39,895,368 × 39,895,368 - Step 4: Simplify right side
18,486,220x = 1,591,640,387,855,424 - Step 5: Solve for x
x = 1,591,640,387,855,424/18,486,220 - Step 6: Final answer
x = 86,098,747.49
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Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.