Finding the Fourth Proportional to 47,378,246.90, 71,120,514.45 and 36,643,138.70
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Solution
The fourth proportional to 47,378,246.90, 71,120,514.45 and 36,643,138.70 is: 55,005,810.60
Step by Step Solution
- Step 1: Write the proportion equation
47,378,246.90 : 71,120,514.45 = 36,643,138.70 : x - Step 2: Convert to fraction form
47,378,246.90/71,120,514.45 = 36,643,138.70/x - Step 3: Cross multiply
47,378,246.90x = 71,120,514.45 × 36,643,138.70 - Step 4: Simplify right side
47,378,246.90x = 2,606,078,875,406,704.50 - Step 5: Solve for x
x = 2,606,078,875,406,704.50/47,378,246.90 - Step 6: Final answer
x = 55,005,810.60
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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.