Finding the Fourth Proportional to 19,991,722.88, 29,987,318.64 and 4,845,785.60
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Solution
The fourth proportional to 19,991,722.88, 29,987,318.64 and 4,845,785.60 is: 7,268,614.00
Step by Step Solution
- Step 1: Write the proportion equation
19,991,722.88 : 29,987,318.64 = 4,845,785.60 : x - Step 2: Convert to fraction form
19,991,722.88/29,987,318.64 = 4,845,785.60/x - Step 3: Cross multiply
19,991,722.88x = 29,987,318.64 × 4,845,785.60 - Step 4: Simplify right side
19,991,722.88x = 145,312,116,848,323.56 - Step 5: Solve for x
x = 145,312,116,848,323.56/19,991,722.88 - Step 6: Final answer
x = 7,268,614.00
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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.