Finding the Fourth Proportional to 2,565,789,910.79, 3,540,790,107.11 and 1,392,368,182.79
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Solution
The fourth proportional to 2,565,789,910.79, 3,540,790,107.11 and 1,392,368,182.79 is: 1,921,468,108.65
Step by Step Solution
- Step 1: Write the proportion equation
2,565,789,910.79 : 3,540,790,107.11 = 1,392,368,182.79 : x - Step 2: Convert to fraction form
2,565,789,910.79/3,540,790,107.11 = 1,392,368,182.79/x - Step 3: Cross multiply
2,565,789,910.79x = 3,540,790,107.11 × 1,392,368,182.79 - Step 4: Simplify right side
2,565,789,910.79x = 4,930,083,487,063,337,984 - Step 5: Solve for x
x = 4,930,083,487,063,337,984/2,565,789,910.79 - Step 6: Final answer
x = 1,921,468,108.65
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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.