Finding the Fourth Proportional to 247,788,625.70, 371,682,938.55 and 207,477,841.70
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Solution
The fourth proportional to 247,788,625.70, 371,682,938.55 and 207,477,841.70 is: 311,216,762.55
Step by Step Solution
- Step 1: Write the proportion equation
247,788,625.70 : 371,682,938.55 = 207,477,841.70 : x - Step 2: Convert to fraction form
247,788,625.70/371,682,938.55 = 207,477,841.70/x - Step 3: Cross multiply
247,788,625.70x = 371,682,938.55 × 207,477,841.70 - Step 4: Simplify right side
247,788,625.70x = 77,115,973,887,067,728 - Step 5: Solve for x
x = 77,115,973,887,067,728/247,788,625.70 - Step 6: Final answer
x = 311,216,762.55
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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.