Finding the Fourth Proportional to 434,554,311.40, 651,831,467.10 and 386,937,197.80
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Solution
The fourth proportional to 434,554,311.40, 651,831,467.10 and 386,937,197.80 is: 580,405,796.70
Step by Step Solution
- Step 1: Write the proportion equation
434,554,311.40 : 651,831,467.10 = 386,937,197.80 : x - Step 2: Convert to fraction form
434,554,311.40/651,831,467.10 = 386,937,197.80/x - Step 3: Cross multiply
434,554,311.40x = 651,831,467.10 × 386,937,197.80 - Step 4: Simplify right side
434,554,311.40x = 252,217,841,317,536,896 - Step 5: Solve for x
x = 252,217,841,317,536,896/434,554,311.40 - Step 6: Final answer
x = 580,405,796.70
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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.