Finding the Fourth Proportional to 20,184,016.42, 27,890,377.84 and 14,372,709.08
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Solution
The fourth proportional to 20,184,016.42, 27,890,377.84 and 14,372,709.08 is: 19,860,283.43
Step by Step Solution
- Step 1: Write the proportion equation
20,184,016.42 : 27,890,377.84 = 14,372,709.08 : x - Step 2: Convert to fraction form
20,184,016.42/27,890,377.84 = 14,372,709.08/x - Step 3: Cross multiply
20,184,016.42x = 27,890,377.84 × 14,372,709.08 - Step 4: Simplify right side
20,184,016.42x = 400,860,286,825,598.81 - Step 5: Solve for x
x = 400,860,286,825,598.81/20,184,016.42 - Step 6: Final answer
x = 19,860,283.43
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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.