Finding the Fourth Proportional to 31,743,330.72, 43,809,848.64 and 18,691,804.08
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Solution
The fourth proportional to 31,743,330.72, 43,809,848.64 and 18,691,804.08 is: 25,797,075.76
Step by Step Solution
- Step 1: Write the proportion equation
31,743,330.72 : 43,809,848.64 = 18,691,804.08 : x - Step 2: Convert to fraction form
31,743,330.72/43,809,848.64 = 18,691,804.08/x - Step 3: Cross multiply
31,743,330.72x = 43,809,848.64 × 18,691,804.08 - Step 4: Simplify right side
31,743,330.72x = 818,885,107,553,334.38 - Step 5: Solve for x
x = 818,885,107,553,334.38/31,743,330.72 - Step 6: Final answer
x = 25,797,075.76
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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.