Finding the Fourth Proportional to 21,122,067,945.36, 29,119,327,843.68 and 16,849,781,785.92
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Solution
The fourth proportional to 21,122,067,945.36, 29,119,327,843.68 and 16,849,781,785.92 is: 23,229,464,140.91
Step by Step Solution
- Step 1: Write the proportion equation
21,122,067,945.36 : 29,119,327,843.68 = 16,849,781,785.92 : x - Step 2: Convert to fraction form
21,122,067,945.36/29,119,327,843.68 = 16,849,781,785.92/x - Step 3: Cross multiply
21,122,067,945.36x = 29,119,327,843.68 × 16,849,781,785.92 - Step 4: Simplify right side
21,122,067,945.36x = 490,654,319,918,672,379,904 - Step 5: Solve for x
x = 490,654,319,918,672,379,904/21,122,067,945.36 - Step 6: Final answer
x = 23,229,464,140.91
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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.