Finding the Fourth Proportional to 19,440,119.80, 29,160,179.70 and 6,656,375.80
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Solution
The fourth proportional to 19,440,119.80, 29,160,179.70 and 6,656,375.80 is: 9,984,563.70
Step by Step Solution
- Step 1: Write the proportion equation
19,440,119.80 : 29,160,179.70 = 6,656,375.80 : x - Step 2: Convert to fraction form
19,440,119.80/29,160,179.70 = 6,656,375.80/x - Step 3: Cross multiply
19,440,119.80x = 29,160,179.70 × 6,656,375.80 - Step 4: Simplify right side
19,440,119.80x = 194,101,114,478,731.25 - Step 5: Solve for x
x = 194,101,114,478,731.25/19,440,119.80 - Step 6: Final answer
x = 9,984,563.70
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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.