Finding the Fourth Proportional to 21,220,132.14, 29,283,782.58 and 11,562,340.14
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Solution
The fourth proportional to 21,220,132.14, 29,283,782.58 and 11,562,340.14 is: 15,956,029.52
Step by Step Solution
- Step 1: Write the proportion equation
21,220,132.14 : 29,283,782.58 = 11,562,340.14 : x - Step 2: Convert to fraction form
21,220,132.14/29,283,782.58 = 11,562,340.14/x - Step 3: Cross multiply
21,220,132.14x = 29,283,782.58 × 11,562,340.14 - Step 4: Simplify right side
21,220,132.14x = 338,589,054,775,766.75 - Step 5: Solve for x
x = 338,589,054,775,766.75/21,220,132.14 - Step 6: Final answer
x = 15,956,029.52
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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.