Finding the Fourth Proportional to 208,813,566.20, 313,218,354.67 and 126,955,044.77
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Solution
The fourth proportional to 208,813,566.20, 313,218,354.67 and 126,955,044.77 is: 190,431,354.45
Step by Step Solution
- Step 1: Write the proportion equation
208,813,566.20 : 313,218,354.67 = 126,955,044.77 : x - Step 2: Convert to fraction form
208,813,566.20/313,218,354.67 = 126,955,044.77/x - Step 3: Cross multiply
208,813,566.20x = 313,218,354.67 × 126,955,044.77 - Step 4: Simplify right side
208,813,566.20x = 39,764,650,238,032,112 - Step 5: Solve for x
x = 39,764,650,238,032,112/208,813,566.20 - Step 6: Final answer
x = 190,431,354.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.