Finding the Fourth Proportional to 18,115,756.18, 24,999,941.76 and 9,855,865.42
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Solution
The fourth proportional to 18,115,756.18, 24,999,941.76 and 9,855,865.42 is: 13,601,202.13
Step by Step Solution
- Step 1: Write the proportion equation
18,115,756.18 : 24,999,941.76 = 9,855,865.42 : x - Step 2: Convert to fraction form
18,115,756.18/24,999,941.76 = 9,855,865.42/x - Step 3: Cross multiply
18,115,756.18x = 24,999,941.76 × 9,855,865.42 - Step 4: Simplify right side
18,115,756.18x = 246,396,061,494,397.97 - Step 5: Solve for x
x = 246,396,061,494,397.97/18,115,756.18 - Step 6: Final answer
x = 13,601,202.13
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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.