Finding the Fourth Proportional to 1,578,914,986.06, 2,178,218,714.70 and 952,035,153.94
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Solution
The fourth proportional to 1,578,914,986.06, 2,178,218,714.70 and 952,035,153.94 is: 1,313,396,102.81
Step by Step Solution
- Step 1: Write the proportion equation
1,578,914,986.06 : 2,178,218,714.70 = 952,035,153.94 : x - Step 2: Convert to fraction form
1,578,914,986.06/2,178,218,714.70 = 952,035,153.94/x - Step 3: Cross multiply
1,578,914,986.06x = 2,178,218,714.70 × 952,035,153.94 - Step 4: Simplify right side
1,578,914,986.06x = 2,073,740,789,364,403,456 - Step 5: Solve for x
x = 2,073,740,789,364,403,456/1,578,914,986.06 - Step 6: Final answer
x = 1,313,396,102.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.