Finding the Fourth Proportional to 15,503,789.14, 21,395,020.17 and 8,628,269.38
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Solution
The fourth proportional to 15,503,789.14, 21,395,020.17 and 8,628,269.38 is: 11,906,895.52
Step by Step Solution
- Step 1: Write the proportion equation
15,503,789.14 : 21,395,020.17 = 8,628,269.38 : x - Step 2: Convert to fraction form
15,503,789.14/21,395,020.17 = 8,628,269.38/x - Step 3: Cross multiply
15,503,789.14x = 21,395,020.17 × 8,628,269.38 - Step 4: Simplify right side
15,503,789.14x = 184,601,997,417,293.44 - Step 5: Solve for x
x = 184,601,997,417,293.44/15,503,789.14 - Step 6: Final answer
x = 11,906,895.52
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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.