Finding the Fourth Proportional to 5,271,518,645.37, 7,274,675,774.43 and 2,892,696,391.80
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Solution
The fourth proportional to 5,271,518,645.37, 7,274,675,774.43 and 2,892,696,391.80 is: 3,991,910,069.92
Step by Step Solution
- Step 1: Write the proportion equation
5,271,518,645.37 : 7,274,675,774.43 = 2,892,696,391.80 : x - Step 2: Convert to fraction form
5,271,518,645.37/7,274,675,774.43 = 2,892,696,391.80/x - Step 3: Cross multiply
5,271,518,645.37x = 7,274,675,774.43 × 2,892,696,391.80 - Step 4: Simplify right side
5,271,518,645.37x = 21,043,428,364,208,533,504 - Step 5: Solve for x
x = 21,043,428,364,208,533,504/5,271,518,645.37 - Step 6: Final answer
x = 3,991,910,069.92
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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.