Finding the Fourth Proportional to 1,623,615,829.92, 2,240,589,845.49 and 881,059,892.67
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Solution
The fourth proportional to 1,623,615,829.92, 2,240,589,845.49 and 881,059,892.67 is: 1,215,862,651.99
Step by Step Solution
- Step 1: Write the proportion equation
1,623,615,829.92 : 2,240,589,845.49 = 881,059,892.67 : x - Step 2: Convert to fraction form
1,623,615,829.92/2,240,589,845.49 = 881,059,892.67/x - Step 3: Cross multiply
1,623,615,829.92x = 2,240,589,845.49 × 881,059,892.67 - Step 4: Simplify right side
1,623,615,829.92x = 1,974,093,848,784,911,104 - Step 5: Solve for x
x = 1,974,093,848,784,911,104/1,623,615,829.92 - Step 6: Final answer
x = 1,215,862,651.99
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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.