Finding the Fourth Proportional to 21,108,720.06, 29,130,089.67 and 11,450,928.06
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Solution
The fourth proportional to 21,108,720.06, 29,130,089.67 and 11,450,928.06 is: 15,802,311.09
Step by Step Solution
- Step 1: Write the proportion equation
21,108,720.06 : 29,130,089.67 = 11,450,928.06 : x - Step 2: Convert to fraction form
21,108,720.06/29,130,089.67 = 11,450,928.06/x - Step 3: Cross multiply
21,108,720.06x = 29,130,089.67 × 11,450,928.06 - Step 4: Simplify right side
21,108,720.06x = 333,566,561,192,519.19 - Step 5: Solve for x
x = 333,566,561,192,519.19/21,108,720.06 - Step 6: Final answer
x = 15,802,311.09
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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.