Finding the Fourth Proportional to 11,369,197.80, 15,689,302.74 and 6,212,440.44
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Solution
The fourth proportional to 11,369,197.80, 15,689,302.74 and 6,212,440.44 is: 8,573,063.86
Step by Step Solution
- Step 1: Write the proportion equation
11,369,197.80 : 15,689,302.74 = 6,212,440.44 : x - Step 2: Convert to fraction form
11,369,197.80/15,689,302.74 = 6,212,440.44/x - Step 3: Cross multiply
11,369,197.80x = 15,689,302.74 × 6,212,440.44 - Step 4: Simplify right side
11,369,197.80x = 97,468,858,817,378.81 - Step 5: Solve for x
x = 97,468,858,817,378.81/11,369,197.80 - Step 6: Final answer
x = 8,573,063.86
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1.5x scale
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.