Finding the Fourth Proportional to 11,312,369.98, 15,611,423.39 and 6,417,798.37
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Solution
The fourth proportional to 11,312,369.98, 15,611,423.39 and 6,417,798.37 is: 8,856,761.91
Step by Step Solution
- Step 1: Write the proportion equation
11,312,369.98 : 15,611,423.39 = 6,417,798.37 : x - Step 2: Convert to fraction form
11,312,369.98/15,611,423.39 = 6,417,798.37/x - Step 3: Cross multiply
11,312,369.98x = 15,611,423.39 × 6,417,798.37 - Step 4: Simplify right side
11,312,369.98x = 100,190,967,585,721.88 - Step 5: Solve for x
x = 100,190,967,585,721.88/11,312,369.98 - Step 6: Final answer
x = 8,856,761.91
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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.