Finding the Fourth Proportional to 28,403,286.66, 39,186,961.74 and 16,171,483.14
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Solution
The fourth proportional to 28,403,286.66, 39,186,961.74 and 16,171,483.14 is: 22,311,195.84
Step by Step Solution
- Step 1: Write the proportion equation
28,403,286.66 : 39,186,961.74 = 16,171,483.14 : x - Step 2: Convert to fraction form
28,403,286.66/39,186,961.74 = 16,171,483.14/x - Step 3: Cross multiply
28,403,286.66x = 39,186,961.74 × 16,171,483.14 - Step 4: Simplify right side
28,403,286.66x = 633,711,291,086,235.12 - Step 5: Solve for x
x = 633,711,291,086,235.12/28,403,286.66 - Step 6: Final answer
x = 22,311,195.84
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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.