Finding the Fourth Proportional to 3,842,043.36, 5,302,321.45 and 2,188,260.70
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Solution
The fourth proportional to 3,842,043.36, 5,302,321.45 and 2,188,260.70 is: 3,019,971.55
Step by Step Solution
- Step 1: Write the proportion equation
3,842,043.36 : 5,302,321.45 = 2,188,260.70 : x - Step 2: Convert to fraction form
3,842,043.36/5,302,321.45 = 2,188,260.70/x - Step 3: Cross multiply
3,842,043.36x = 5,302,321.45 × 2,188,260.70 - Step 4: Simplify right side
3,842,043.36x = 11,602,861,647,802.02 - Step 5: Solve for x
x = 11,602,861,647,802.02/3,842,043.36 - Step 6: Final answer
x = 3,019,971.55
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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.