Finding the Fourth Proportional to 11,687,481.83, 16,128,415.53 and 6,530,885.75
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Solution
The fourth proportional to 11,687,481.83, 16,128,415.53 and 6,530,885.75 is: 9,012,449.45
Step by Step Solution
- Step 1: Write the proportion equation
11,687,481.83 : 16,128,415.53 = 6,530,885.75 : x - Step 2: Convert to fraction form
11,687,481.83/16,128,415.53 = 6,530,885.75/x - Step 3: Cross multiply
11,687,481.83x = 16,128,415.53 × 6,530,885.75 - Step 4: Simplify right side
11,687,481.83x = 105,332,839,195,276.73 - Step 5: Solve for x
x = 105,332,839,195,276.73/11,687,481.83 - Step 6: Final answer
x = 9,012,449.45
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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.