Finding the Fourth Proportional to 1,239,471,206.20, 1,854,902,137.20 and 852,050,717.20
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Solution
The fourth proportional to 1,239,471,206.20, 1,854,902,137.20 and 852,050,717.20 is: 1,275,116,911.50
Step by Step Solution
- Step 1: Write the proportion equation
1,239,471,206.20 : 1,854,902,137.20 = 852,050,717.20 : x - Step 2: Convert to fraction form
1,239,471,206.20/1,854,902,137.20 = 852,050,717.20/x - Step 3: Cross multiply
1,239,471,206.20x = 1,854,902,137.20 × 852,050,717.20 - Step 4: Simplify right side
1,239,471,206.20x = 1,580,470,696,337,072,896 - Step 5: Solve for x
x = 1,580,470,696,337,072,896/1,239,471,206.20 - Step 6: Final answer
x = 1,275,116,911.50
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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.