Finding the Fourth Proportional to 2,638,514,923.98, 3,641,136,511.09 and 1,432,845,631.37
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Solution
The fourth proportional to 2,638,514,923.98, 3,641,136,511.09 and 1,432,845,631.37 is: 1,977,319,322.97
Step by Step Solution
- Step 1: Write the proportion equation
2,638,514,923.98 : 3,641,136,511.09 = 1,432,845,631.37 : x - Step 2: Convert to fraction form
2,638,514,923.98/3,641,136,511.09 = 1,432,845,631.37/x - Step 3: Cross multiply
2,638,514,923.98x = 3,641,136,511.09 × 1,432,845,631.37 - Step 4: Simplify right side
2,638,514,923.98x = 5,217,186,543,137,110,016 - Step 5: Solve for x
x = 5,217,186,543,137,110,016/2,638,514,923.98 - Step 6: Final answer
x = 1,977,319,322.97
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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.