Finding the Fourth Proportional to 79,841,197.80, 119,761,796.70 and 54,332,029.80
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Solution
The fourth proportional to 79,841,197.80, 119,761,796.70 and 54,332,029.80 is: 81,498,044.70
Step by Step Solution
- Step 1: Write the proportion equation
79,841,197.80 : 119,761,796.70 = 54,332,029.80 : x - Step 2: Convert to fraction form
79,841,197.80/119,761,796.70 = 54,332,029.80/x - Step 3: Cross multiply
79,841,197.80x = 119,761,796.70 × 54,332,029.80 - Step 4: Simplify right side
79,841,197.80x = 6,506,901,507,205,941 - Step 5: Solve for x
x = 6,506,901,507,205,941/79,841,197.80 - Step 6: Final answer
x = 81,498,044.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.