Finding the Fourth Proportional to 19,991,418.52, 29,987,128.11 and 4,845,350.02
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Solution
The fourth proportional to 19,991,418.52, 29,987,128.11 and 4,845,350.02 is: 7,268,025.11
Step by Step Solution
- Step 1: Write the proportion equation
19,991,418.52 : 29,987,128.11 = 4,845,350.02 : x - Step 2: Convert to fraction form
19,991,418.52/29,987,128.11 = 4,845,350.02/x - Step 3: Cross multiply
19,991,418.52x = 29,987,128.11 × 4,845,350.02 - Step 4: Simplify right side
19,991,418.52x = 145,298,131,759,704.09 - Step 5: Solve for x
x = 145,298,131,759,704.09/19,991,418.52 - Step 6: Final answer
x = 7,268,025.11
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.