Finding the Fourth Proportional to 2,069,815.68, 2,855,579.49 and 2,066,623.56
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Solution
The fourth proportional to 2,069,815.68, 2,855,579.49 and 2,066,623.56 is: 2,851,175.55
Step by Step Solution
- Step 1: Write the proportion equation
2,069,815.68 : 2,855,579.49 = 2,066,623.56 : x - Step 2: Convert to fraction form
2,069,815.68/2,855,579.49 = 2,066,623.56/x - Step 3: Cross multiply
2,069,815.68x = 2,855,579.49 × 2,066,623.56 - Step 4: Simplify right side
2,069,815.68x = 5,901,407,851,486.79 - Step 5: Solve for x
x = 5,901,407,851,486.79/2,069,815.68 - Step 6: Final answer
x = 2,851,175.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.