Finding the Fourth Proportional to 141,272,717.94, 194,955,329.71 and 78,548,330.05
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Solution
The fourth proportional to 141,272,717.94, 194,955,329.71 and 78,548,330.05 is: 108,396,127.76
Step by Step Solution
- Step 1: Write the proportion equation
141,272,717.94 : 194,955,329.71 = 78,548,330.05 : x - Step 2: Convert to fraction form
141,272,717.94/194,955,329.71 = 78,548,330.05/x - Step 3: Cross multiply
141,272,717.94x = 194,955,329.71 × 78,548,330.05 - Step 4: Simplify right side
141,272,717.94x = 15,313,415,582,383,892 - Step 5: Solve for x
x = 15,313,415,582,383,892/141,272,717.94 - Step 6: Final answer
x = 108,396,127.76
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.