Finding the Fourth Proportional to 11,506,579.26, 15,879,460.44 and 6,279,872.82
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Solution
The fourth proportional to 11,506,579.26, 15,879,460.44 and 6,279,872.82 is: 8,666,432.46
Step by Step Solution
- Step 1: Write the proportion equation
11,506,579.26 : 15,879,460.44 = 6,279,872.82 : x - Step 2: Convert to fraction form
11,506,579.26/15,879,460.44 = 6,279,872.82/x - Step 3: Cross multiply
11,506,579.26x = 15,879,460.44 × 6,279,872.82 - Step 4: Simplify right side
11,506,579.26x = 99,720,992,013,421.25 - Step 5: Solve for x
x = 99,720,992,013,421.25/11,506,579.26 - Step 6: Final answer
x = 8,666,432.46
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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.