Finding the Fourth Proportional to 7,738,830.21, 11,609,366.32 and 2,880,732.90
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Solution
The fourth proportional to 7,738,830.21, 11,609,366.32 and 2,880,732.90 is: 4,321,516.64
Step by Step Solution
- Step 1: Write the proportion equation
7,738,830.21 : 11,609,366.32 = 2,880,732.90 : x - Step 2: Convert to fraction form
7,738,830.21/11,609,366.32 = 2,880,732.90/x - Step 3: Cross multiply
7,738,830.21x = 11,609,366.32 × 2,880,732.90 - Step 4: Simplify right side
7,738,830.21x = 33,443,483,506,175.93 - Step 5: Solve for x
x = 33,443,483,506,175.93/7,738,830.21 - Step 6: Final answer
x = 4,321,516.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.