Finding the Fourth Proportional to 18,270,873.70, 27,397,342.47 and 9,038,178.79
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Solution
The fourth proportional to 18,270,873.70, 27,397,342.47 and 9,038,178.79 is: 13,552,831.88
Step by Step Solution
- Step 1: Write the proportion equation
18,270,873.70 : 27,397,342.47 = 9,038,178.79 : x - Step 2: Convert to fraction form
18,270,873.70/27,397,342.47 = 9,038,178.79/x - Step 3: Cross multiply
18,270,873.70x = 27,397,342.47 × 9,038,178.79 - Step 4: Simplify right side
18,270,873.70x = 247,622,079,614,720.19 - Step 5: Solve for x
x = 247,622,079,614,720.19/18,270,873.70 - Step 6: Final answer
x = 13,552,831.88
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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.