Finding the Fourth Proportional to 239,765,566.02, 330,876,477.09 and 129,757,279.02
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Solution
The fourth proportional to 239,765,566.02, 330,876,477.09 and 129,757,279.02 is: 179,065,042.87
Step by Step Solution
- Step 1: Write the proportion equation
239,765,566.02 : 330,876,477.09 = 129,757,279.02 : x - Step 2: Convert to fraction form
239,765,566.02/330,876,477.09 = 129,757,279.02/x - Step 3: Cross multiply
239,765,566.02x = 330,876,477.09 × 129,757,279.02 - Step 4: Simplify right side
239,765,566.02x = 42,933,631,358,921,760 - Step 5: Solve for x
x = 42,933,631,358,921,760/239,765,566.02 - Step 6: Final answer
x = 179,065,042.87
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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.