Finding the Fourth Proportional to 2,565,789,909.19, 3,540,790,104.92 and 1,392,368,181.19
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Solution
The fourth proportional to 2,565,789,909.19, 3,540,790,104.92 and 1,392,368,181.19 is: 1,921,468,106.45
Step by Step Solution
- Step 1: Write the proportion equation
2,565,789,909.19 : 3,540,790,104.92 = 1,392,368,181.19 : x - Step 2: Convert to fraction form
2,565,789,909.19/3,540,790,104.92 = 1,392,368,181.19/x - Step 3: Cross multiply
2,565,789,909.19x = 3,540,790,104.92 × 1,392,368,181.19 - Step 4: Simplify right side
2,565,789,909.19x = 4,930,083,478,363,010,048 - Step 5: Solve for x
x = 4,930,083,478,363,010,048/2,565,789,909.19 - Step 6: Final answer
x = 1,921,468,106.45
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1.5x scale
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.