Finding the Fourth Proportional to 11,615,638.70, 16,028,923.02 and 6,458,889.54
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Solution
The fourth proportional to 11,615,638.70, 16,028,923.02 and 6,458,889.54 is: 8,912,901.47
Step by Step Solution
- Step 1: Write the proportion equation
11,615,638.70 : 16,028,923.02 = 6,458,889.54 : x - Step 2: Convert to fraction form
11,615,638.70/16,028,923.02 = 6,458,889.54/x - Step 3: Cross multiply
11,615,638.70x = 16,028,923.02 × 6,458,889.54 - Step 4: Simplify right side
11,615,638.70x = 103,529,043,231,343.20 - Step 5: Solve for x
x = 103,529,043,231,343.20/11,615,638.70 - Step 6: Final answer
x = 8,912,901.47
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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.