Finding the Fourth Proportional to 21,220,133.14, 29,283,783.96 and 11,562,341.14
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Solution
The fourth proportional to 21,220,133.14, 29,283,783.96 and 11,562,341.14 is: 15,956,030.90
Step by Step Solution
- Step 1: Write the proportion equation
21,220,133.14 : 29,283,783.96 = 11,562,341.14 : x - Step 2: Convert to fraction form
21,220,133.14/29,283,783.96 = 11,562,341.14/x - Step 3: Cross multiply
21,220,133.14x = 29,283,783.96 × 11,562,341.14 - Step 4: Simplify right side
21,220,133.14x = 338,589,100,015,580.12 - Step 5: Solve for x
x = 338,589,100,015,580.12/21,220,133.14 - Step 6: Final answer
x = 15,956,030.90
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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.