Finding the Fourth Proportional to 19,995,803.31, 27,586,396.18 and 11,621,781.66
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Solution
The fourth proportional to 19,995,803.31, 27,586,396.18 and 11,621,781.66 is: 16,033,518.04
Step by Step Solution
- Step 1: Write the proportion equation
19,995,803.31 : 27,586,396.18 = 11,621,781.66 : x - Step 2: Convert to fraction form
19,995,803.31/27,586,396.18 = 11,621,781.66/x - Step 3: Cross multiply
19,995,803.31x = 27,586,396.18 × 11,621,781.66 - Step 4: Simplify right side
19,995,803.31x = 320,603,073,242,821.75 - Step 5: Solve for x
x = 320,603,073,242,821.75/19,995,803.31 - Step 6: Final answer
x = 16,033,518.04
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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.