Finding the Fourth Proportional to 11,041,048.98, 15,235,578.90 and 8,142,000.66
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Solution
The fourth proportional to 11,041,048.98, 15,235,578.90 and 8,142,000.66 is: 11,235,172.82
Step by Step Solution
- Step 1: Write the proportion equation
11,041,048.98 : 15,235,578.90 = 8,142,000.66 : x - Step 2: Convert to fraction form
11,041,048.98/15,235,578.90 = 8,142,000.66/x - Step 3: Cross multiply
11,041,048.98x = 15,235,578.90 × 8,142,000.66 - Step 4: Simplify right side
11,041,048.98x = 124,048,093,459,282.08 - Step 5: Solve for x
x = 124,048,093,459,282.08/11,041,048.98 - Step 6: Final answer
x = 11,235,172.82
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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.