Finding the Fourth Proportional to 263,239,575.80, 394,859,363.70 and 186,712,071.80
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Solution
The fourth proportional to 263,239,575.80, 394,859,363.70 and 186,712,071.80 is: 280,068,107.70
Step by Step Solution
- Step 1: Write the proportion equation
263,239,575.80 : 394,859,363.70 = 186,712,071.80 : x - Step 2: Convert to fraction form
263,239,575.80/394,859,363.70 = 186,712,071.80/x - Step 3: Cross multiply
263,239,575.80x = 394,859,363.70 × 186,712,071.80 - Step 4: Simplify right side
263,239,575.80x = 73,725,009,866,056,720 - Step 5: Solve for x
x = 73,725,009,866,056,720/263,239,575.80 - Step 6: Final answer
x = 280,068,107.70
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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.