Finding the Fourth Proportional to 1,641,864,354.12, 2,265,744,806.28 and 889,171,429.68
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Solution
The fourth proportional to 1,641,864,354.12, 2,265,744,806.28 and 889,171,429.68 is: 1,227,041,407.92
Step by Step Solution
- Step 1: Write the proportion equation
1,641,864,354.12 : 2,265,744,806.28 = 889,171,429.68 : x - Step 2: Convert to fraction form
1,641,864,354.12/2,265,744,806.28 = 889,171,429.68/x - Step 3: Cross multiply
1,641,864,354.12x = 2,265,744,806.28 × 889,171,429.68 - Step 4: Simplify right side
1,641,864,354.12x = 2,014,635,548,690,022,400 - Step 5: Solve for x
x = 2,014,635,548,690,022,400/1,641,864,354.12 - Step 6: Final answer
x = 1,227,041,407.92
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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.