Finding the Fourth Proportional to 239,789,489.31, 330,917,519.21 and 146,952,068.31
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Solution
The fourth proportional to 239,789,489.31, 330,917,519.21 and 146,952,068.31 is: 202,798,771.65
Step by Step Solution
- Step 1: Write the proportion equation
239,789,489.31 : 330,917,519.21 = 146,952,068.31 : x - Step 2: Convert to fraction form
239,789,489.31/330,917,519.21 = 146,952,068.31/x - Step 3: Cross multiply
239,789,489.31x = 330,917,519.21 × 146,952,068.31 - Step 4: Simplify right side
239,789,489.31x = 48,629,013,887,188,896 - Step 5: Solve for x
x = 48,629,013,887,188,896/239,789,489.31 - Step 6: Final answer
x = 202,798,771.65
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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.