Finding the Fourth Proportional to 394,085,308,936.72, 543,878,260,363.92 and 239,771,943,644.08
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Solution
The fourth proportional to 394,085,308,936.72, 543,878,260,363.92 and 239,771,943,644.08 is: 330,909,944,207.43
Step by Step Solution
- Step 1: Write the proportion equation
394,085,308,936.72 : 543,878,260,363.92 = 239,771,943,644.08 : x - Step 2: Convert to fraction form
394,085,308,936.72/543,878,260,363.92 = 239,771,943,644.08/x - Step 3: Cross multiply
394,085,308,936.72x = 543,878,260,363.92 × 239,771,943,644.08 - Step 4: Simplify right side
394,085,308,936.72x = 130,406,747,593,218,080,112,640 - Step 5: Solve for x
x = 130,406,747,593,218,080,112,640/394,085,308,936.72 - Step 6: Final answer
x = 330,909,944,207.43
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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.