Finding the Fourth Proportional to 6,418,598.70, 8,858,641.74 and 4,096,493.12
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Solution
The fourth proportional to 6,418,598.70, 8,858,641.74 and 4,096,493.12 is: 5,653,783.11
Step by Step Solution
- Step 1: Write the proportion equation
6,418,598.70 : 8,858,641.74 = 4,096,493.12 : x - Step 2: Convert to fraction form
6,418,598.70/8,858,641.74 = 4,096,493.12/x - Step 3: Cross multiply
6,418,598.70x = 8,858,641.74 × 4,096,493.12 - Step 4: Simplify right side
6,418,598.70x = 36,289,364,940,454.83 - Step 5: Solve for x
x = 36,289,364,940,454.83/6,418,598.70 - Step 6: Final answer
x = 5,653,783.11
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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.