Finding the Fourth Proportional to 19,998,586.08, 27,597,963.66 and 11,178,025.68
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Solution
The fourth proportional to 19,998,586.08, 27,597,963.66 and 11,178,025.68 is: 15,425,627.86
Step by Step Solution
- Step 1: Write the proportion equation
19,998,586.08 : 27,597,963.66 = 11,178,025.68 : x - Step 2: Convert to fraction form
19,998,586.08/27,597,963.66 = 11,178,025.68/x - Step 3: Cross multiply
19,998,586.08x = 27,597,963.66 × 11,178,025.68 - Step 4: Simplify right side
19,998,586.08x = 308,490,746,507,186.81 - Step 5: Solve for x
x = 308,490,746,507,186.81/19,998,586.08 - Step 6: Final answer
x = 15,425,627.86
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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.