Finding the Fourth Proportional to 49,343,423.68, 68,101,047.32 and 28,431,451.20
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Solution
The fourth proportional to 49,343,423.68, 68,101,047.32 and 28,431,451.20 is: 39,239,506.69
Step by Step Solution
- Step 1: Write the proportion equation
49,343,423.68 : 68,101,047.32 = 28,431,451.20 : x - Step 2: Convert to fraction form
49,343,423.68/68,101,047.32 = 28,431,451.20/x - Step 3: Cross multiply
49,343,423.68x = 68,101,047.32 × 28,431,451.20 - Step 4: Simplify right side
49,343,423.68x = 1,936,211,603,547,470.50 - Step 5: Solve for x
x = 1,936,211,603,547,470.50/49,343,423.68 - Step 6: Final answer
x = 39,239,506.69
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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.