Finding the Fourth Proportional to 19,905,359.09, 27,455,245.43 and 13,286,610.44
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Solution
The fourth proportional to 19,905,359.09, 27,455,245.43 and 13,286,610.44 is: 18,326,077.35
Step by Step Solution
- Step 1: Write the proportion equation
19,905,359.09 : 27,455,245.43 = 13,286,610.44 : x - Step 2: Convert to fraction form
19,905,359.09/27,455,245.43 = 13,286,610.44/x - Step 3: Cross multiply
19,905,359.09x = 27,455,245.43 × 13,286,610.44 - Step 4: Simplify right side
19,905,359.09x = 364,787,150,392,507.50 - Step 5: Solve for x
x = 364,787,150,392,507.50/19,905,359.09 - Step 6: Final answer
x = 18,326,077.35
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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.