Finding the Fourth Proportional to 21,153,371.24, 29,180,908.88 and 13,815,499.63
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Solution
The fourth proportional to 21,153,371.24, 29,180,908.88 and 13,815,499.63 is: 19,058,372.84
Step by Step Solution
- Step 1: Write the proportion equation
21,153,371.24 : 29,180,908.88 = 13,815,499.63 : x - Step 2: Convert to fraction form
21,153,371.24/29,180,908.88 = 13,815,499.63/x - Step 3: Cross multiply
21,153,371.24x = 29,180,908.88 × 13,815,499.63 - Step 4: Simplify right side
21,153,371.24x = 403,148,835,876,908.44 - Step 5: Solve for x
x = 403,148,835,876,908.44/21,153,371.24 - Step 6: Final answer
x = 19,058,372.84
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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.