Finding the Fourth Proportional to 3,929,951.47, 5,423,277.45 and 2,211,067.87
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Solution
The fourth proportional to 3,929,951.47, 5,423,277.45 and 2,211,067.87 is: 3,051,242.39
Step by Step Solution
- Step 1: Write the proportion equation
3,929,951.47 : 5,423,277.45 = 2,211,067.87 : x - Step 2: Convert to fraction form
3,929,951.47/5,423,277.45 = 2,211,067.87/x - Step 3: Cross multiply
3,929,951.47x = 5,423,277.45 × 2,211,067.87 - Step 4: Simplify right side
3,929,951.47x = 11,991,234,519,790.53 - Step 5: Solve for x
x = 11,991,234,519,790.53/3,929,951.47 - Step 6: Final answer
x = 3,051,242.39
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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.