Finding the Fourth Proportional to 13,129,217.12, 19,728,463.44 and 7,068,429.92
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Solution
The fourth proportional to 13,129,217.12, 19,728,463.44 and 7,068,429.92 is: 10,621,292.95
Step by Step Solution
- Step 1: Write the proportion equation
13,129,217.12 : 19,728,463.44 = 7,068,429.92 : x - Step 2: Convert to fraction form
13,129,217.12/19,728,463.44 = 7,068,429.92/x - Step 3: Cross multiply
13,129,217.12x = 19,728,463.44 × 7,068,429.92 - Step 4: Simplify right side
13,129,217.12x = 139,449,261,254,922.12 - Step 5: Solve for x
x = 139,449,261,254,922.12/13,129,217.12 - Step 6: Final answer
x = 10,621,292.95
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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.