Finding the Fourth Proportional to 14,834,878.21, 20,471,860.97 and 8,219,442.54
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Solution
The fourth proportional to 14,834,878.21, 20,471,860.97 and 8,219,442.54 is: 11,342,680.58
Step by Step Solution
- Step 1: Write the proportion equation
14,834,878.21 : 20,471,860.97 = 8,219,442.54 : x - Step 2: Convert to fraction form
14,834,878.21/20,471,860.97 = 8,219,442.54/x - Step 3: Cross multiply
14,834,878.21x = 20,471,860.97 × 8,219,442.54 - Step 4: Simplify right side
14,834,878.21x = 168,267,284,929,783.66 - Step 5: Solve for x
x = 168,267,284,929,783.66/14,834,878.21 - Step 6: Final answer
x = 11,342,680.58
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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.