Finding the Fourth Proportional to 14,386,902.87, 19,853,691.35 and 7,860,391.86
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Solution
The fourth proportional to 14,386,902.87, 19,853,691.35 and 7,860,391.86 is: 10,847,212.58
Step by Step Solution
- Step 1: Write the proportion equation
14,386,902.87 : 19,853,691.35 = 7,860,391.86 : x - Step 2: Convert to fraction form
14,386,902.87/19,853,691.35 = 7,860,391.86/x - Step 3: Cross multiply
14,386,902.87x = 19,853,691.35 × 7,860,391.86 - Step 4: Simplify right side
14,386,902.87x = 156,057,793,839,190.44 - Step 5: Solve for x
x = 156,057,793,839,190.44/14,386,902.87 - Step 6: Final answer
x = 10,847,212.58
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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.