Finding the Fourth Proportional to 18,521,898.12, 27,650,709.84 and 17,291,027.87
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Solution
The fourth proportional to 18,521,898.12, 27,650,709.84 and 17,291,027.87 is: 25,813,185.63
Step by Step Solution
- Step 1: Write the proportion equation
18,521,898.12 : 27,650,709.84 = 17,291,027.87 : x - Step 2: Convert to fraction form
18,521,898.12/27,650,709.84 = 17,291,027.87/x - Step 3: Cross multiply
18,521,898.12x = 27,650,709.84 × 17,291,027.87 - Step 4: Simplify right side
18,521,898.12x = 478,109,194,362,862.31 - Step 5: Solve for x
x = 478,109,194,362,862.31/18,521,898.12 - Step 6: Final answer
x = 25,813,185.63
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.