Finding the Fourth Proportional to 37,978,463.36, 56,976,656.16 and 12,419,373.44
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Solution
The fourth proportional to 37,978,463.36, 56,976,656.16 and 12,419,373.44 is: 18,631,990.54
Step by Step Solution
- Step 1: Write the proportion equation
37,978,463.36 : 56,976,656.16 = 12,419,373.44 : x - Step 2: Convert to fraction form
37,978,463.36/56,976,656.16 = 12,419,373.44/x - Step 3: Cross multiply
37,978,463.36x = 56,976,656.16 × 12,419,373.44 - Step 4: Simplify right side
37,978,463.36x = 707,614,370,213,516.38 - Step 5: Solve for x
x = 707,614,370,213,516.38/37,978,463.36 - Step 6: Final answer
x = 18,631,990.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.