Finding the Fourth Proportional to 1,387,409,342.58, 2,080,282,900.10 and 441,598,860.68
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Solution
The fourth proportional to 1,387,409,342.58, 2,080,282,900.10 and 441,598,860.68 is: 662,133,755.62
Step by Step Solution
- Step 1: Write the proportion equation
1,387,409,342.58 : 2,080,282,900.10 = 441,598,860.68 : x - Step 2: Convert to fraction form
1,387,409,342.58/2,080,282,900.10 = 441,598,860.68/x - Step 3: Cross multiply
1,387,409,342.58x = 2,080,282,900.10 × 441,598,860.68 - Step 4: Simplify right side
1,387,409,342.58x = 918,650,558,584,939,648 - Step 5: Solve for x
x = 918,650,558,584,939,648/1,387,409,342.58 - Step 6: Final answer
x = 662,133,755.62
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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.