Finding the Fourth Proportional to 53,235,401.80, 79,853,102.70 and 19,144,445.80
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Solution
The fourth proportional to 53,235,401.80, 79,853,102.70 and 19,144,445.80 is: 28,716,668.70
Step by Step Solution
- Step 1: Write the proportion equation
53,235,401.80 : 79,853,102.70 = 19,144,445.80 : x - Step 2: Convert to fraction form
53,235,401.80/79,853,102.70 = 19,144,445.80/x - Step 3: Cross multiply
53,235,401.80x = 79,853,102.70 × 19,144,445.80 - Step 4: Simplify right side
53,235,401.80x = 1,528,743,396,601,983.75 - Step 5: Solve for x
x = 1,528,743,396,601,983.75/53,235,401.80 - Step 6: Final answer
x = 28,716,668.70
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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.