Finding the Fourth Proportional to 414,096,327.20, 621,144,490.80 and 318,544,839.20
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Solution
The fourth proportional to 414,096,327.20, 621,144,490.80 and 318,544,839.20 is: 477,817,258.80
Step by Step Solution
- Step 1: Write the proportion equation
414,096,327.20 : 621,144,490.80 = 318,544,839.20 : x - Step 2: Convert to fraction form
414,096,327.20/621,144,490.80 = 318,544,839.20/x - Step 3: Cross multiply
414,096,327.20x = 621,144,490.80 × 318,544,839.20 - Step 4: Simplify right side
414,096,327.20x = 197,862,371,941,851,872 - Step 5: Solve for x
x = 197,862,371,941,851,872/414,096,327.20 - Step 6: Final answer
x = 477,817,258.80
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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.