Finding the Fourth Proportional to 21,675,324.24, 29,887,430.76 and 13,824,337.68
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Solution
The fourth proportional to 21,675,324.24, 29,887,430.76 and 13,824,337.68 is: 19,061,949.46
Step by Step Solution
- Step 1: Write the proportion equation
21,675,324.24 : 29,887,430.76 = 13,824,337.68 : x - Step 2: Convert to fraction form
21,675,324.24/29,887,430.76 = 13,824,337.68/x - Step 3: Cross multiply
21,675,324.24x = 29,887,430.76 × 13,824,337.68 - Step 4: Simplify right side
21,675,324.24x = 413,173,935,213,859.06 - Step 5: Solve for x
x = 413,173,935,213,859.06/21,675,324.24 - Step 6: Final answer
x = 19,061,949.46
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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.