Finding the Fourth Proportional to 15,449,577.26, 21,320,278.56 and 8,480,048.40
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Solution
The fourth proportional to 15,449,577.26, 21,320,278.56 and 8,480,048.40 is: 11,702,391.02
Step by Step Solution
- Step 1: Write the proportion equation
15,449,577.26 : 21,320,278.56 = 8,480,048.40 : x - Step 2: Convert to fraction form
15,449,577.26/21,320,278.56 = 8,480,048.40/x - Step 3: Cross multiply
15,449,577.26x = 21,320,278.56 × 8,480,048.40 - Step 4: Simplify right side
15,449,577.26x = 180,796,994,090,282.31 - Step 5: Solve for x
x = 180,796,994,090,282.31/15,449,577.26 - Step 6: Final answer
x = 11,702,391.02
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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.