Finding the Fourth Proportional to 3,929,944.22, 5,423,267.47 and 2,211,060.63
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Solution
The fourth proportional to 3,929,944.22, 5,423,267.47 and 2,211,060.63 is: 3,051,232.41
Step by Step Solution
- Step 1: Write the proportion equation
3,929,944.22 : 5,423,267.47 = 2,211,060.63 : x - Step 2: Convert to fraction form
3,929,944.22/5,423,267.47 = 2,211,060.63/x - Step 3: Cross multiply
3,929,944.22x = 5,423,267.47 × 2,211,060.63 - Step 4: Simplify right side
3,929,944.22x = 11,991,173,177,821.40 - Step 5: Solve for x
x = 11,991,173,177,821.40/3,929,944.22 - Step 6: Final answer
x = 3,051,232.41
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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.