Finding the Fourth Proportional to 11,987,990.16, 16,543,089.99 and 6,555,365.52
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Solution
The fourth proportional to 11,987,990.16, 16,543,089.99 and 6,555,365.52 is: 9,046,220.45
Step by Step Solution
- Step 1: Write the proportion equation
11,987,990.16 : 16,543,089.99 = 6,555,365.52 : x - Step 2: Convert to fraction form
11,987,990.16/16,543,089.99 = 6,555,365.52/x - Step 3: Cross multiply
11,987,990.16x = 16,543,089.99 × 6,555,365.52 - Step 4: Simplify right side
11,987,990.16x = 108,446,001,714,703.14 - Step 5: Solve for x
x = 108,446,001,714,703.14/11,987,990.16 - Step 6: Final answer
x = 9,046,220.45
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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.