Finding the Fourth Proportional to 331,777,683.80, 497,666,525.70 and 251,156,115.80
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Solution
The fourth proportional to 331,777,683.80, 497,666,525.70 and 251,156,115.80 is: 376,734,173.70
Step by Step Solution
- Step 1: Write the proportion equation
331,777,683.80 : 497,666,525.70 = 251,156,115.80 : x - Step 2: Convert to fraction form
331,777,683.80/497,666,525.70 = 251,156,115.80/x - Step 3: Cross multiply
331,777,683.80x = 497,666,525.70 × 251,156,115.80 - Step 4: Simplify right side
331,777,683.80x = 124,991,991,558,492,880 - Step 5: Solve for x
x = 124,991,991,558,492,880/331,777,683.80 - Step 6: Final answer
x = 376,734,173.70
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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.