Finding the Fourth Proportional to 115,918,272.10, 173,877,408.15 and 87,007,881.70
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Solution
The fourth proportional to 115,918,272.10, 173,877,408.15 and 87,007,881.70 is: 130,511,822.55
Step by Step Solution
- Step 1: Write the proportion equation
115,918,272.10 : 173,877,408.15 = 87,007,881.70 : x - Step 2: Convert to fraction form
115,918,272.10/173,877,408.15 = 87,007,881.70/x - Step 3: Cross multiply
115,918,272.10x = 173,877,408.15 × 87,007,881.70 - Step 4: Simplify right side
115,918,272.10x = 15,128,704,958,617,816 - Step 5: Solve for x
x = 15,128,704,958,617,816/115,918,272.10 - Step 6: Final answer
x = 130,511,822.55
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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.