Finding the Fourth Proportional to 19,991,419.27, 29,987,129.24 and 4,845,350.77
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Solution
The fourth proportional to 19,991,419.27, 29,987,129.24 and 4,845,350.77 is: 7,268,026.23
Step by Step Solution
- Step 1: Write the proportion equation
19,991,419.27 : 29,987,129.24 = 4,845,350.77 : x - Step 2: Convert to fraction form
19,991,419.27/29,987,129.24 = 4,845,350.77/x - Step 3: Cross multiply
19,991,419.27x = 29,987,129.24 × 4,845,350.77 - Step 4: Simplify right side
19,991,419.27x = 145,298,159,653,928.94 - Step 5: Solve for x
x = 145,298,159,653,928.94/19,991,419.27 - Step 6: Final answer
x = 7,268,026.23
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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.