Finding the Fourth Proportional to 4,001,772.18, 5,522,448.51 and 2,166,224.70
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Solution
The fourth proportional to 4,001,772.18, 5,522,448.51 and 2,166,224.70 is: 2,989,391.66
Step by Step Solution
- Step 1: Write the proportion equation
4,001,772.18 : 5,522,448.51 = 2,166,224.70 : x - Step 2: Convert to fraction form
4,001,772.18/5,522,448.51 = 2,166,224.70/x - Step 3: Cross multiply
4,001,772.18x = 5,522,448.51 × 2,166,224.70 - Step 4: Simplify right side
4,001,772.18x = 11,962,864,366,840.20 - Step 5: Solve for x
x = 11,962,864,366,840.20/4,001,772.18 - Step 6: Final answer
x = 2,989,391.66
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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.