Finding the Fourth Proportional to 5,190,618.64, 7,163,258.62 and 2,985,477.94
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Solution
The fourth proportional to 5,190,618.64, 7,163,258.62 and 2,985,477.94 is: 4,120,077.41
Step by Step Solution
- Step 1: Write the proportion equation
5,190,618.64 : 7,163,258.62 = 2,985,477.94 : x - Step 2: Convert to fraction form
5,190,618.64/7,163,258.62 = 2,985,477.94/x - Step 3: Cross multiply
5,190,618.64x = 7,163,258.62 × 2,985,477.94 - Step 4: Simplify right side
5,190,618.64x = 21,385,750,588,524.84 - Step 5: Solve for x
x = 21,385,750,588,524.84/5,190,618.64 - Step 6: Final answer
x = 4,120,077.41
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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.