Finding the Fourth Proportional to 394,996,265.40, 545,159,431.98 and 236,216,013.24
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Solution
The fourth proportional to 394,996,265.40, 545,159,431.98 and 236,216,013.24 is: 326,016,721.88
Step by Step Solution
- Step 1: Write the proportion equation
394,996,265.40 : 545,159,431.98 = 236,216,013.24 : x - Step 2: Convert to fraction form
394,996,265.40/545,159,431.98 = 236,216,013.24/x - Step 3: Cross multiply
394,996,265.40x = 545,159,431.98 × 236,216,013.24 - Step 4: Simplify right side
394,996,265.40x = 128,775,387,602,498,576 - Step 5: Solve for x
x = 128,775,387,602,498,576/394,996,265.40 - Step 6: Final answer
x = 326,016,721.88
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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.