Finding the Fourth Proportional to 394,898,744.70, 544,977,398.07 and 218,686,740.08
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Solution
The fourth proportional to 394,898,744.70, 544,977,398.07 and 218,686,740.08 is: 301,797,187.76
Step by Step Solution
- Step 1: Write the proportion equation
394,898,744.70 : 544,977,398.07 = 218,686,740.08 : x - Step 2: Convert to fraction form
394,898,744.70/544,977,398.07 = 218,686,740.08/x - Step 3: Cross multiply
394,898,744.70x = 544,977,398.07 × 218,686,740.08 - Step 4: Simplify right side
394,898,744.70x = 119,179,330,598,483,904 - Step 5: Solve for x
x = 119,179,330,598,483,904/394,898,744.70 - Step 6: Final answer
x = 301,797,187.76
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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.