Finding the Third Proportional to 8,387,490 and 18,345,000
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Solution
The third proportional to 8,387,490 and 18,345,000 is: 40,123,925.63
Step by Step Solution
- Step 1: Write the proportion equation
8,387,490 : 18,345,000 = 18,345,000 : x - Step 2: Convert to fraction form
8,387,490/18,345,000 = 18,345,000/x - Step 3: Cross multiply
8,387,490x = 18,345,000 × 18,345,000 - Step 4: Simplify right side
8,387,490x = 336,539,025,000,000 - Step 5: Solve for x
x = 336,539,025,000,000/8,387,490 - Step 6: Final answer
x = 40,123,925.63
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.