Finding the Fourth Proportional to 20,513,163.10, 30,771,373.97 and 6,866,381.52
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Solution
The fourth proportional to 20,513,163.10, 30,771,373.97 and 6,866,381.52 is: 10,300,117.65
Step by Step Solution
- Step 1: Write the proportion equation
20,513,163.10 : 30,771,373.97 = 6,866,381.52 : x - Step 2: Convert to fraction form
20,513,163.10/30,771,373.97 = 6,866,381.52/x - Step 3: Cross multiply
20,513,163.10x = 30,771,373.97 × 6,866,381.52 - Step 4: Simplify right side
20,513,163.10x = 211,287,993,384,428.25 - Step 5: Solve for x
x = 211,287,993,384,428.25/20,513,163.10 - Step 6: Final answer
x = 10,300,117.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.