Finding the Fourth Proportional to 2,638,757,722.95, 3,641,556,769.62 and 1,552,515,435.15
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Solution
The fourth proportional to 2,638,757,722.95, 3,641,556,769.62 and 1,552,515,435.15 is: 2,142,513,139.28
Step by Step Solution
- Step 1: Write the proportion equation
2,638,757,722.95 : 3,641,556,769.62 = 1,552,515,435.15 : x - Step 2: Convert to fraction form
2,638,757,722.95/3,641,556,769.62 = 1,552,515,435.15/x - Step 3: Cross multiply
2,638,757,722.95x = 3,641,556,769.62 × 1,552,515,435.15 - Step 4: Simplify right side
2,638,757,722.95x = 5,653,573,092,810,022,912 - Step 5: Solve for x
x = 5,653,573,092,810,022,912/2,638,757,722.95 - Step 6: Final answer
x = 2,142,513,139.28
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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.