Finding the Fourth Proportional to 551,606,164.40, 827,409,246.60 and 388,347,489.20
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Solution
The fourth proportional to 551,606,164.40, 827,409,246.60 and 388,347,489.20 is: 582,521,233.80
Step by Step Solution
- Step 1: Write the proportion equation
551,606,164.40 : 827,409,246.60 = 388,347,489.20 : x - Step 2: Convert to fraction form
551,606,164.40/827,409,246.60 = 388,347,489.20/x - Step 3: Cross multiply
551,606,164.40x = 827,409,246.60 × 388,347,489.20 - Step 4: Simplify right side
551,606,164.40x = 321,322,303,457,973,632 - Step 5: Solve for x
x = 321,322,303,457,973,632/551,606,164.40 - Step 6: Final answer
x = 582,521,233.80
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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.