Finding the Fourth Proportional to 10,776,983.61, 14,891,691.45 and 7,674,120.09
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Solution
The fourth proportional to 10,776,983.61, 14,891,691.45 and 7,674,120.09 is: 10,604,138.66
Step by Step Solution
- Step 1: Write the proportion equation
10,776,983.61 : 14,891,691.45 = 7,674,120.09 : x - Step 2: Convert to fraction form
10,776,983.61/14,891,691.45 = 7,674,120.09/x - Step 3: Cross multiply
10,776,983.61x = 14,891,691.45 × 7,674,120.09 - Step 4: Simplify right side
10,776,983.61x = 114,280,628,530,526.22 - Step 5: Solve for x
x = 114,280,628,530,526.22/10,776,983.61 - Step 6: Final answer
x = 10,604,138.66
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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.