Finding the Fourth Proportional to 10,006,812.78, 13,809,450.84 and 5,423,134.14
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Solution
The fourth proportional to 10,006,812.78, 13,809,450.84 and 5,423,134.14 is: 7,483,951.78
Step by Step Solution
- Step 1: Write the proportion equation
10,006,812.78 : 13,809,450.84 = 5,423,134.14 : x - Step 2: Convert to fraction form
10,006,812.78/13,809,450.84 = 5,423,134.14/x - Step 3: Cross multiply
10,006,812.78x = 13,809,450.84 × 5,423,134.14 - Step 4: Simplify right side
10,006,812.78x = 74,890,504,305,055.67 - Step 5: Solve for x
x = 74,890,504,305,055.67/10,006,812.78 - Step 6: Final answer
x = 7,483,951.78
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1.5x scale
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.