Finding the Fourth Proportional to 18,598,917.65, 27,898,660.71 and 7,085,024.15
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Solution
The fourth proportional to 18,598,917.65, 27,898,660.71 and 7,085,024.15 is: 10,627,644.50
Step by Step Solution
- Step 1: Write the proportion equation
18,598,917.65 : 27,898,660.71 = 7,085,024.15 : x - Step 2: Convert to fraction form
18,598,917.65/27,898,660.71 = 7,085,024.15/x - Step 3: Cross multiply
18,598,917.65x = 27,898,660.71 × 7,085,024.15 - Step 4: Simplify right side
18,598,917.65x = 197,662,684,743,512.84 - Step 5: Solve for x
x = 197,662,684,743,512.84/18,598,917.65 - Step 6: Final answer
x = 10,627,644.50
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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.