Finding the Fourth Proportional to 7,874,690.16, 11,813,020.32 and 3,081,760.32
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Solution
The fourth proportional to 7,874,690.16, 11,813,020.32 and 3,081,760.32 is: 4,623,025.99
Step by Step Solution
- Step 1: Write the proportion equation
7,874,690.16 : 11,813,020.32 = 3,081,760.32 : x - Step 2: Convert to fraction form
7,874,690.16/11,813,020.32 = 3,081,760.32/x - Step 3: Cross multiply
7,874,690.16x = 11,813,020.32 × 3,081,760.32 - Step 4: Simplify right side
7,874,690.16x = 36,404,897,281,529.70 - Step 5: Solve for x
x = 36,404,897,281,529.70/7,874,690.16 - Step 6: Final answer
x = 4,623,025.99
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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.