Finding the Fourth Proportional to 5,390,415.35, 7,438,671.84 and 3,067,255.47
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Solution
The fourth proportional to 5,390,415.35, 7,438,671.84 and 3,067,255.47 is: 4,232,754.89
Step by Step Solution
- Step 1: Write the proportion equation
5,390,415.35 : 7,438,671.84 = 3,067,255.47 : x - Step 2: Convert to fraction form
5,390,415.35/7,438,671.84 = 3,067,255.47/x - Step 3: Cross multiply
5,390,415.35x = 7,438,671.84 × 3,067,255.47 - Step 4: Simplify right side
5,390,415.35x = 22,816,306,890,774.96 - Step 5: Solve for x
x = 22,816,306,890,774.96/5,390,415.35 - Step 6: Final answer
x = 4,232,754.89
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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.