Finding the Fourth Proportional to 5,347,013.42, 7,378,880.21 and 2,899,623.74
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Solution
The fourth proportional to 5,347,013.42, 7,378,880.21 and 2,899,623.74 is: 4,001,481.68
Step by Step Solution
- Step 1: Write the proportion equation
5,347,013.42 : 7,378,880.21 = 2,899,623.74 : x - Step 2: Convert to fraction form
5,347,013.42/7,378,880.21 = 2,899,623.74/x - Step 3: Cross multiply
5,347,013.42x = 7,378,880.21 × 2,899,623.74 - Step 4: Simplify right side
5,347,013.42x = 21,395,976,231,532.19 - Step 5: Solve for x
x = 21,395,976,231,532.19/5,347,013.42 - Step 6: Final answer
x = 4,001,481.68
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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.