Finding the Fourth Proportional to 10,775,640.95, 14,870,731.52 and 6,129,306.90
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Solution
The fourth proportional to 10,775,640.95, 14,870,731.52 and 6,129,306.90 is: 8,458,640.90
Step by Step Solution
- Step 1: Write the proportion equation
10,775,640.95 : 14,870,731.52 = 6,129,306.90 : x - Step 2: Convert to fraction form
10,775,640.95/14,870,731.52 = 6,129,306.90/x - Step 3: Cross multiply
10,775,640.95x = 14,870,731.52 × 6,129,306.90 - Step 4: Simplify right side
10,775,640.95x = 91,147,277,313,583.48 - Step 5: Solve for x
x = 91,147,277,313,583.48/10,775,640.95 - Step 6: Final answer
x = 8,458,640.90
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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.