Finding the Fourth Proportional to 15,305,558.06, 21,121,691.74 and 8,336,262.98
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Solution
The fourth proportional to 15,305,558.06, 21,121,691.74 and 8,336,262.98 is: 11,504,054.69
Step by Step Solution
- Step 1: Write the proportion equation
15,305,558.06 : 21,121,691.74 = 8,336,262.98 : x - Step 2: Convert to fraction form
15,305,558.06/21,121,691.74 = 8,336,262.98/x - Step 3: Cross multiply
15,305,558.06x = 21,121,691.74 × 8,336,262.98 - Step 4: Simplify right side
15,305,558.06x = 176,075,976,927,133.78 - Step 5: Solve for x
x = 176,075,976,927,133.78/15,305,558.06 - Step 6: Final answer
x = 11,504,054.69
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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.