Finding the Fourth Proportional to 1,387,409,343.58, 2,080,282,901.60 and 441,598,861.68
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Solution
The fourth proportional to 1,387,409,343.58, 2,080,282,901.60 and 441,598,861.68 is: 662,133,757.11
Step by Step Solution
- Step 1: Write the proportion equation
1,387,409,343.58 : 2,080,282,901.60 = 441,598,861.68 : x - Step 2: Convert to fraction form
1,387,409,343.58/2,080,282,901.60 = 441,598,861.68/x - Step 3: Cross multiply
1,387,409,343.58x = 2,080,282,901.60 × 441,598,861.68 - Step 4: Simplify right side
1,387,409,343.58x = 918,650,561,318,927,360 - Step 5: Solve for x
x = 918,650,561,318,927,360/1,387,409,343.58 - Step 6: Final answer
x = 662,133,757.11
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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.