Finding the Fourth Proportional to 125,990,711.69, 173,768,617.17 and 81,951,773.39
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Solution
The fourth proportional to 125,990,711.69, 173,768,617.17 and 81,951,773.39 is: 113,029,334.83
Step by Step Solution
- Step 1: Write the proportion equation
125,990,711.69 : 173,768,617.17 = 81,951,773.39 : x - Step 2: Convert to fraction form
125,990,711.69/173,768,617.17 = 81,951,773.39/x - Step 3: Cross multiply
125,990,711.69x = 173,768,617.17 × 81,951,773.39 - Step 4: Simplify right side
125,990,711.69x = 14,240,646,336,392,292 - Step 5: Solve for x
x = 14,240,646,336,392,292/125,990,711.69 - Step 6: Final answer
x = 113,029,334.83
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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.