Finding the Fourth Proportional to 481,135,213.17, 663,966,593.60 and 261,118,639.17
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Solution
The fourth proportional to 481,135,213.17, 663,966,593.60 and 261,118,639.17 is: 360,343,721.74
Step by Step Solution
- Step 1: Write the proportion equation
481,135,213.17 : 663,966,593.60 = 261,118,639.17 : x - Step 2: Convert to fraction form
481,135,213.17/663,966,593.60 = 261,118,639.17/x - Step 3: Cross multiply
481,135,213.17x = 663,966,593.60 × 261,118,639.17 - Step 4: Simplify right side
481,135,213.17x = 173,374,053,373,866,848 - Step 5: Solve for x
x = 173,374,053,373,866,848/481,135,213.17 - Step 6: Final answer
x = 360,343,721.74
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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.