Finding the Fourth Proportional to 15,403,305.44, 21,255,716.04 and 8,432,633.36
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Solution
The fourth proportional to 15,403,305.44, 21,255,716.04 and 8,432,633.36 is: 11,636,571.18
Step by Step Solution
- Step 1: Write the proportion equation
15,403,305.44 : 21,255,716.04 = 8,432,633.36 : x - Step 2: Convert to fraction form
15,403,305.44/21,255,716.04 = 8,432,633.36/x - Step 3: Cross multiply
15,403,305.44x = 21,255,716.04 × 8,432,633.36 - Step 4: Simplify right side
15,403,305.44x = 179,241,660,169,591.06 - Step 5: Solve for x
x = 179,241,660,169,591.06/15,403,305.44 - Step 6: Final answer
x = 11,636,571.18
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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.