Finding the Fourth Proportional to 7,855,997,567.72, 11,786,207,146.18 and 3,434,805,257
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Solution
The fourth proportional to 7,855,997,567.72, 11,786,207,146.18 and 3,434,805,257 is: 5,153,174,490.80
Step by Step Solution
- Step 1: Write the proportion equation
7,855,997,567.72 : 11,786,207,146.18 = 3,434,805,257 : x - Step 2: Convert to fraction form
7,855,997,567.72/11,786,207,146.18 = 3,434,805,257/x - Step 3: Cross multiply
7,855,997,567.72x = 11,786,207,146.18 × 3,434,805,257 - Step 4: Simplify right side
7,855,997,567.72x = 40,483,326,265,790,029,824 - Step 5: Solve for x
x = 40,483,326,265,790,029,824/7,855,997,567.72 - Step 6: Final answer
x = 5,153,174,490.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.