Finding the Fourth Proportional to 405,999,654.21, 560,279,937.47 and 220,360,708.17
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Solution
The fourth proportional to 405,999,654.21, 560,279,937.47 and 220,360,708.17 is: 304,098,002.33
Step by Step Solution
- Step 1: Write the proportion equation
405,999,654.21 : 560,279,937.47 = 220,360,708.17 : x - Step 2: Convert to fraction form
405,999,654.21/560,279,937.47 = 220,360,708.17/x - Step 3: Cross multiply
405,999,654.21x = 560,279,937.47 × 220,360,708.17 - Step 4: Simplify right side
405,999,654.21x = 123,463,683,793,230,720 - Step 5: Solve for x
x = 123,463,683,793,230,720/405,999,654.21 - Step 6: Final answer
x = 304,098,002.33
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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.