Finding the Fourth Proportional to 21,486,882.24, 32,220,865.44 and 11,387,136.96
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Solution
The fourth proportional to 21,486,882.24, 32,220,865.44 and 11,387,136.96 is: 17,075,693.14
Step by Step Solution
- Step 1: Write the proportion equation
21,486,882.24 : 32,220,865.44 = 11,387,136.96 : x - Step 2: Convert to fraction form
21,486,882.24/32,220,865.44 = 11,387,136.96/x - Step 3: Cross multiply
21,486,882.24x = 32,220,865.44 × 11,387,136.96 - Step 4: Simplify right side
21,486,882.24x = 366,903,407,735,010.69 - Step 5: Solve for x
x = 366,903,407,735,010.69/21,486,882.24 - Step 6: Final answer
x = 17,075,693.14
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.