Finding the Fourth Proportional to 4,986,108.15, 6,880,415.70 and 2,811,185.79
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Solution
The fourth proportional to 4,986,108.15, 6,880,415.70 and 2,811,185.79 is: 3,879,203.23
Step by Step Solution
- Step 1: Write the proportion equation
4,986,108.15 : 6,880,415.70 = 2,811,185.79 : x - Step 2: Convert to fraction form
4,986,108.15/6,880,415.70 = 2,811,185.79/x - Step 3: Cross multiply
4,986,108.15x = 6,880,415.70 × 2,811,185.79 - Step 4: Simplify right side
4,986,108.15x = 19,342,126,845,132.90 - Step 5: Solve for x
x = 19,342,126,845,132.90/4,986,108.15 - Step 6: Final answer
x = 3,879,203.23
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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.