Finding the Fourth Proportional to 471,551,157.80, 707,326,736.70 and 213,270,831.80
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Solution
The fourth proportional to 471,551,157.80, 707,326,736.70 and 213,270,831.80 is: 319,906,247.70
Step by Step Solution
- Step 1: Write the proportion equation
471,551,157.80 : 707,326,736.70 = 213,270,831.80 : x - Step 2: Convert to fraction form
471,551,157.80/707,326,736.70 = 213,270,831.80/x - Step 3: Cross multiply
471,551,157.80x = 707,326,736.70 × 213,270,831.80 - Step 4: Simplify right side
471,551,157.80x = 150,852,161,490,388,608 - Step 5: Solve for x
x = 150,852,161,490,388,608/471,551,157.80 - Step 6: Final answer
x = 319,906,247.70
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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.