Finding the Fourth Proportional to 11,615,900.28, 16,030,331.28 and 6,389,129.49
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Solution
The fourth proportional to 11,615,900.28, 16,030,331.28 and 6,389,129.49 is: 8,817,212.60
Step by Step Solution
- Step 1: Write the proportion equation
11,615,900.28 : 16,030,331.28 = 6,389,129.49 : x - Step 2: Convert to fraction form
11,615,900.28/16,030,331.28 = 6,389,129.49/x - Step 3: Cross multiply
11,615,900.28x = 16,030,331.28 × 6,389,129.49 - Step 4: Simplify right side
11,615,900.28x = 102,419,862,315,517.45 - Step 5: Solve for x
x = 102,419,862,315,517.45/11,615,900.28 - Step 6: Final answer
x = 8,817,212.60
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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.