Finding the Fourth Proportional to 11,970,909.66, 16,519,905.77 and 6,743,980.54
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Solution
The fourth proportional to 11,970,909.66, 16,519,905.77 and 6,743,980.54 is: 9,306,721.56
Step by Step Solution
- Step 1: Write the proportion equation
11,970,909.66 : 16,519,905.77 = 6,743,980.54 : x - Step 2: Convert to fraction form
11,970,909.66/16,519,905.77 = 6,743,980.54/x - Step 3: Cross multiply
11,970,909.66x = 16,519,905.77 × 6,743,980.54 - Step 4: Simplify right side
11,970,909.66x = 111,409,922,995,900.22 - Step 5: Solve for x
x = 111,409,922,995,900.22/11,970,909.66 - Step 6: Final answer
x = 9,306,721.56
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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.