Finding the Fourth Proportional to 239,857,234.58, 331,003,729.06 and 129,848,685.14
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Solution
The fourth proportional to 239,857,234.58, 331,003,729.06 and 129,848,685.14 is: 179,191,588.99
Step by Step Solution
- Step 1: Write the proportion equation
239,857,234.58 : 331,003,729.06 = 129,848,685.14 : x - Step 2: Convert to fraction form
239,857,234.58/331,003,729.06 = 129,848,685.14/x - Step 3: Cross multiply
239,857,234.58x = 331,003,729.06 × 129,848,685.14 - Step 4: Simplify right side
239,857,234.58x = 42,980,398,994,877,808 - Step 5: Solve for x
x = 42,980,398,994,877,808/239,857,234.58 - Step 6: Final answer
x = 179,191,588.99
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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.