Finding the Fourth Proportional to 139,413,273.40, 209,119,910.10 and 125,542,663.30
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Solution
The fourth proportional to 139,413,273.40, 209,119,910.10 and 125,542,663.30 is: 188,313,994.95
Step by Step Solution
- Step 1: Write the proportion equation
139,413,273.40 : 209,119,910.10 = 125,542,663.30 : x - Step 2: Convert to fraction form
139,413,273.40/209,119,910.10 = 125,542,663.30/x - Step 3: Cross multiply
139,413,273.40x = 209,119,910.10 × 125,542,663.30 - Step 4: Simplify right side
139,413,273.40x = 26,253,470,463,010,568 - Step 5: Solve for x
x = 26,253,470,463,010,568/139,413,273.40 - Step 6: Final answer
x = 188,313,994.95
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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.