Finding the Fourth Proportional to 4,911,221.42, 7,366,780.29 and 1,919,379.50
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Solution
The fourth proportional to 4,911,221.42, 7,366,780.29 and 1,919,379.50 is: 2,879,048.99
Step by Step Solution
- Step 1: Write the proportion equation
4,911,221.42 : 7,366,780.29 = 1,919,379.50 : x - Step 2: Convert to fraction form
4,911,221.42/7,366,780.29 = 1,919,379.50/x - Step 3: Cross multiply
4,911,221.42x = 7,366,780.29 × 1,919,379.50 - Step 4: Simplify right side
4,911,221.42x = 14,139,647,069,630.05 - Step 5: Solve for x
x = 14,139,647,069,630.05/4,911,221.42 - Step 6: Final answer
x = 2,879,048.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.