Finding the Fourth Proportional to 11,510,771.49, 15,884,902.71 and 6,354,120.74
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Solution
The fourth proportional to 11,510,771.49, 15,884,902.71 and 6,354,120.74 is: 8,768,707.62
Step by Step Solution
- Step 1: Write the proportion equation
11,510,771.49 : 15,884,902.71 = 6,354,120.74 : x - Step 2: Convert to fraction form
11,510,771.49/15,884,902.71 = 6,354,120.74/x - Step 3: Cross multiply
11,510,771.49x = 15,884,902.71 × 6,354,120.74 - Step 4: Simplify right side
11,510,771.49x = 100,934,589,683,068.70 - Step 5: Solve for x
x = 100,934,589,683,068.70/11,510,771.49 - Step 6: Final answer
x = 8,768,707.62
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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.