Finding the Fourth Proportional to 4,220,142.36, 5,823,799.74 and 2,477,470.68
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Solution
The fourth proportional to 4,220,142.36, 5,823,799.74 and 2,477,470.68 is: 3,418,911.47
Step by Step Solution
- Step 1: Write the proportion equation
4,220,142.36 : 5,823,799.74 = 2,477,470.68 : x - Step 2: Convert to fraction form
4,220,142.36/5,823,799.74 = 2,477,470.68/x - Step 3: Cross multiply
4,220,142.36x = 5,823,799.74 × 2,477,470.68 - Step 4: Simplify right side
4,220,142.36x = 14,428,293,102,041.62 - Step 5: Solve for x
x = 14,428,293,102,041.62/4,220,142.36 - Step 6: Final answer
x = 3,418,911.47
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Double scale
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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.