Finding the Fourth Proportional to 112,172,992.20, 168,259,488.30 and 106,882,201.80
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Solution
The fourth proportional to 112,172,992.20, 168,259,488.30 and 106,882,201.80 is: 160,323,302.70
Step by Step Solution
- Step 1: Write the proportion equation
112,172,992.20 : 168,259,488.30 = 106,882,201.80 : x - Step 2: Convert to fraction form
112,172,992.20/168,259,488.30 = 106,882,201.80/x - Step 3: Cross multiply
112,172,992.20x = 168,259,488.30 × 106,882,201.80 - Step 4: Simplify right side
112,172,992.20x = 17,983,944,583,245,340 - Step 5: Solve for x
x = 17,983,944,583,245,340/112,172,992.20 - Step 6: Final answer
x = 160,323,302.70
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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.