Finding the Fourth Proportional to 21,325,464.76, 29,398,532.68 and 15,203,264.44
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Solution
The fourth proportional to 21,325,464.76, 29,398,532.68 and 15,203,264.44 is: 20,958,683.50
Step by Step Solution
- Step 1: Write the proportion equation
21,325,464.76 : 29,398,532.68 = 15,203,264.44 : x - Step 2: Convert to fraction form
21,325,464.76/29,398,532.68 = 15,203,264.44/x - Step 3: Cross multiply
21,325,464.76x = 29,398,532.68 × 15,203,264.44 - Step 4: Simplify right side
21,325,464.76x = 446,953,666,482,021.88 - Step 5: Solve for x
x = 446,953,666,482,021.88/21,325,464.76 - Step 6: Final answer
x = 20,958,683.50
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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.