Finding the Fourth Proportional to 5,105,894.76, 7,045,927.35 and 2,782,737.95
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Solution
The fourth proportional to 5,105,894.76, 7,045,927.35 and 2,782,737.95 is: 3,840,065.33
Step by Step Solution
- Step 1: Write the proportion equation
5,105,894.76 : 7,045,927.35 = 2,782,737.95 : x - Step 2: Convert to fraction form
5,105,894.76/7,045,927.35 = 2,782,737.95/x - Step 3: Cross multiply
5,105,894.76x = 7,045,927.35 × 2,782,737.95 - Step 4: Simplify right side
5,105,894.76x = 19,606,969,411,578.67 - Step 5: Solve for x
x = 19,606,969,411,578.67/5,105,894.76 - Step 6: Final answer
x = 3,840,065.33
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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.