Finding the Fourth Proportional to 7,197,764.41, 9,932,915.62 and 3,934,592.43
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Solution
The fourth proportional to 7,197,764.41, 9,932,915.62 and 3,934,592.43 is: 5,429,737.95
Step by Step Solution
- Step 1: Write the proportion equation
7,197,764.41 : 9,932,915.62 = 3,934,592.43 : x - Step 2: Convert to fraction form
7,197,764.41/9,932,915.62 = 3,934,592.43/x - Step 3: Cross multiply
7,197,764.41x = 9,932,915.62 × 3,934,592.43 - Step 4: Simplify right side
7,197,764.41x = 39,081,974,606,280.76 - Step 5: Solve for x
x = 39,081,974,606,280.76/7,197,764.41 - Step 6: Final answer
x = 5,429,737.95
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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.