Finding the Fourth Proportional to 247,788,605.20, 371,682,907.80 and 207,477,821.20
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Solution
The fourth proportional to 247,788,605.20, 371,682,907.80 and 207,477,821.20 is: 311,216,731.80
Step by Step Solution
- Step 1: Write the proportion equation
247,788,605.20 : 371,682,907.80 = 207,477,821.20 : x - Step 2: Convert to fraction form
247,788,605.20/371,682,907.80 = 207,477,821.20/x - Step 3: Cross multiply
247,788,605.20x = 371,682,907.80 × 207,477,821.20 - Step 4: Simplify right side
247,788,605.20x = 77,115,959,887,624,480 - Step 5: Solve for x
x = 77,115,959,887,624,480/247,788,605.20 - Step 6: Final answer
x = 311,216,731.80
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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.