Finding the Fourth Proportional to 405,651,694.17, 559,812,009.87 and 229,436,241.36
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Solution
The fourth proportional to 405,651,694.17, 559,812,009.87 and 229,436,241.36 is: 316,629,180.30
Step by Step Solution
- Step 1: Write the proportion equation
405,651,694.17 : 559,812,009.87 = 229,436,241.36 : x - Step 2: Convert to fraction form
405,651,694.17/559,812,009.87 = 229,436,241.36/x - Step 3: Cross multiply
405,651,694.17x = 559,812,009.87 × 229,436,241.36 - Step 4: Simplify right side
405,651,694.17x = 128,441,163,412,760,032 - Step 5: Solve for x
x = 128,441,163,412,760,032/405,651,694.17 - Step 6: Final answer
x = 316,629,180.30
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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.