Finding the Fourth Proportional to 11,391,932.87, 15,720,886.39 and 6,235,621.10
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Solution
The fourth proportional to 11,391,932.87, 15,720,886.39 and 6,235,621.10 is: 8,605,167.53
Step by Step Solution
- Step 1: Write the proportion equation
11,391,932.87 : 15,720,886.39 = 6,235,621.10 : x - Step 2: Convert to fraction form
11,391,932.87/15,720,886.39 = 6,235,621.10/x - Step 3: Cross multiply
11,391,932.87x = 15,720,886.39 × 6,235,621.10 - Step 4: Simplify right side
11,391,932.87x = 98,029,490,868,597.77 - Step 5: Solve for x
x = 98,029,490,868,597.77/11,391,932.87 - Step 6: Final answer
x = 8,605,167.53
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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.