Finding the Fourth Proportional to 3,999,773.37, 5,519,671.98 and 2,164,235.21
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Solution
The fourth proportional to 3,999,773.37, 5,519,671.98 and 2,164,235.21 is: 2,986,636.32
Step by Step Solution
- Step 1: Write the proportion equation
3,999,773.37 : 5,519,671.98 = 2,164,235.21 : x - Step 2: Convert to fraction form
3,999,773.37/5,519,671.98 = 2,164,235.21/x - Step 3: Cross multiply
3,999,773.37x = 5,519,671.98 × 2,164,235.21 - Step 4: Simplify right side
3,999,773.37x = 11,945,868,419,168.06 - Step 5: Solve for x
x = 11,945,868,419,168.06/3,999,773.37 - Step 6: Final answer
x = 2,986,636.32
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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.