Finding the Fourth Proportional to 28,586,907.23, 39,449,901.96 and 15,534,135.09
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Solution
The fourth proportional to 28,586,907.23, 39,449,901.96 and 15,534,135.09 is: 21,437,090.12
Step by Step Solution
- Step 1: Write the proportion equation
28,586,907.23 : 39,449,901.96 = 15,534,135.09 : x - Step 2: Convert to fraction form
28,586,907.23/39,449,901.96 = 15,534,135.09/x - Step 3: Cross multiply
28,586,907.23x = 39,449,901.96 × 15,534,135.09 - Step 4: Simplify right side
28,586,907.23x = 612,820,106,333,895.75 - Step 5: Solve for x
x = 612,820,106,333,895.75/28,586,907.23 - Step 6: Final answer
x = 21,437,090.12
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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.