Finding the Fourth Proportional to 19,169,643.21, 28,733,165.49 and 14,605,644.85
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Solution
The fourth proportional to 19,169,643.21, 28,733,165.49 and 14,605,644.85 is: 21,892,238.99
Step by Step Solution
- Step 1: Write the proportion equation
19,169,643.21 : 28,733,165.49 = 14,605,644.85 : x - Step 2: Convert to fraction form
19,169,643.21/28,733,165.49 = 14,605,644.85/x - Step 3: Cross multiply
19,169,643.21x = 28,733,165.49 × 14,605,644.85 - Step 4: Simplify right side
19,169,643.21x = 419,666,410,625,621.81 - Step 5: Solve for x
x = 419,666,410,625,621.81/19,169,643.21 - Step 6: Final answer
x = 21,892,238.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.