Finding the Fourth Proportional to 21,460,193.84, 29,609,883.64 and 13,616,846.32
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Solution
The fourth proportional to 21,460,193.84, 29,609,883.64 and 13,616,846.32 is: 18,787,958.68
Step by Step Solution
- Step 1: Write the proportion equation
21,460,193.84 : 29,609,883.64 = 13,616,846.32 : x - Step 2: Convert to fraction form
21,460,193.84/29,609,883.64 = 13,616,846.32/x - Step 3: Cross multiply
21,460,193.84x = 29,609,883.64 × 13,616,846.32 - Step 4: Simplify right side
21,460,193.84x = 403,193,235,078,962.25 - Step 5: Solve for x
x = 403,193,235,078,962.25/21,460,193.84 - Step 6: Final answer
x = 18,787,958.68
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1.5x scale
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.