Finding the Fourth Proportional to 18,157,075.49, 25,056,010.21 and 9,896,955.99
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Solution
The fourth proportional to 18,157,075.49, 25,056,010.21 and 9,896,955.99 is: 13,657,388.30
Step by Step Solution
- Step 1: Write the proportion equation
18,157,075.49 : 25,056,010.21 = 9,896,955.99 : x - Step 2: Convert to fraction form
18,157,075.49/25,056,010.21 = 9,896,955.99/x - Step 3: Cross multiply
18,157,075.49x = 25,056,010.21 × 9,896,955.99 - Step 4: Simplify right side
18,157,075.49x = 247,978,230,308,618.28 - Step 5: Solve for x
x = 247,978,230,308,618.28/18,157,075.49 - Step 6: Final answer
x = 13,657,388.30
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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.