Finding the Fourth Proportional to 28,982,458.80, 39,999,577.14 and 18,699,097.32
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Solution
The fourth proportional to 28,982,458.80, 39,999,577.14 and 18,699,097.32 is: 25,807,195.69
Step by Step Solution
- Step 1: Write the proportion equation
28,982,458.80 : 39,999,577.14 = 18,699,097.32 : x - Step 2: Convert to fraction form
28,982,458.80/39,999,577.14 = 18,699,097.32/x - Step 3: Cross multiply
28,982,458.80x = 39,999,577.14 × 18,699,097.32 - Step 4: Simplify right side
28,982,458.80x = 747,955,985,699,707.25 - Step 5: Solve for x
x = 747,955,985,699,707.25/28,982,458.80 - Step 6: Final answer
x = 25,807,195.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.