Finding the Fourth Proportional to 8,578,478.22, 11,835,340.50 and 5,482,813.68
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Solution
The fourth proportional to 8,578,478.22, 11,835,340.50 and 5,482,813.68 is: 7,564,391.39
Step by Step Solution
- Step 1: Write the proportion equation
8,578,478.22 : 11,835,340.50 = 5,482,813.68 : x - Step 2: Convert to fraction form
8,578,478.22/11,835,340.50 = 5,482,813.68/x - Step 3: Cross multiply
8,578,478.22x = 11,835,340.50 × 5,482,813.68 - Step 4: Simplify right side
8,578,478.22x = 64,890,966,800,858.04 - Step 5: Solve for x
x = 64,890,966,800,858.04/8,578,478.22 - Step 6: Final answer
x = 7,564,391.39
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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.