Finding the Fourth Proportional to 11,687,328.27, 16,128,203.63 and 6,530,732.19
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Solution
The fourth proportional to 11,687,328.27, 16,128,203.63 and 6,530,732.19 is: 9,012,237.54
Step by Step Solution
- Step 1: Write the proportion equation
11,687,328.27 : 16,128,203.63 = 6,530,732.19 : x - Step 2: Convert to fraction form
11,687,328.27/16,128,203.63 = 6,530,732.19/x - Step 3: Cross multiply
11,687,328.27x = 16,128,203.63 × 6,530,732.19 - Step 4: Simplify right side
11,687,328.27x = 105,328,978,580,662.20 - Step 5: Solve for x
x = 105,328,978,580,662.20/11,687,328.27 - Step 6: Final answer
x = 9,012,237.54
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1.5x scale
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.