Finding the Fourth Proportional to 405,999,666.07, 560,279,953.84 and 220,360,720.03
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Solution
The fourth proportional to 405,999,666.07, 560,279,953.84 and 220,360,720.03 is: 304,098,018.70
Step by Step Solution
- Step 1: Write the proportion equation
405,999,666.07 : 560,279,953.84 = 220,360,720.03 : x - Step 2: Convert to fraction form
405,999,666.07/560,279,953.84 = 220,360,720.03/x - Step 3: Cross multiply
405,999,666.07x = 560,279,953.84 × 220,360,720.03 - Step 4: Simplify right side
405,999,666.07x = 123,463,694,046,557,568 - Step 5: Solve for x
x = 123,463,694,046,557,568/405,999,666.07 - Step 6: Final answer
x = 304,098,018.70
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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.