Finding the Fourth Proportional to 11,687,352.30, 16,128,236.76 and 6,530,756.22
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Solution
The fourth proportional to 11,687,352.30, 16,128,236.76 and 6,530,756.22 is: 9,012,270.69
Step by Step Solution
- Step 1: Write the proportion equation
11,687,352.30 : 16,128,236.76 = 6,530,756.22 : x - Step 2: Convert to fraction form
11,687,352.30/16,128,236.76 = 6,530,756.22/x - Step 3: Cross multiply
11,687,352.30x = 16,128,236.76 × 6,530,756.22 - Step 4: Simplify right side
11,687,352.30x = 105,329,582,538,002.64 - Step 5: Solve for x
x = 105,329,582,538,002.64/11,687,352.30 - Step 6: Final answer
x = 9,012,270.69
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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.