Finding the Fourth Proportional to 2,578,721.40, 3,868,082.10 and 2,358,271.80
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Solution
The fourth proportional to 2,578,721.40, 3,868,082.10 and 2,358,271.80 is: 3,537,407.70
Step by Step Solution
- Step 1: Write the proportion equation
2,578,721.40 : 3,868,082.10 = 2,358,271.80 : x - Step 2: Convert to fraction form
2,578,721.40/3,868,082.10 = 2,358,271.80/x - Step 3: Cross multiply
2,578,721.40x = 3,868,082.10 × 2,358,271.80 - Step 4: Simplify right side
2,578,721.40x = 9,121,988,936,514.78 - Step 5: Solve for x
x = 9,121,988,936,514.78/2,578,721.40 - Step 6: Final answer
x = 3,537,407.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.