Finding the Fourth Proportional to 254,983,312.20, 382,474,968.30 and 82,583,851.80
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Solution
The fourth proportional to 254,983,312.20, 382,474,968.30 and 82,583,851.80 is: 123,875,777.70
Step by Step Solution
- Step 1: Write the proportion equation
254,983,312.20 : 382,474,968.30 = 82,583,851.80 : x - Step 2: Convert to fraction form
254,983,312.20/382,474,968.30 = 82,583,851.80/x - Step 3: Cross multiply
254,983,312.20x = 382,474,968.30 × 82,583,851.80 - Step 4: Simplify right side
254,983,312.20x = 31,586,256,099,296,896 - Step 5: Solve for x
x = 31,586,256,099,296,896/254,983,312.20 - Step 6: Final answer
x = 123,875,777.70
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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.