Finding the Fourth Proportional to 99,163,009.40, 148,744,514.10 and 60,363,879.80
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Solution
The fourth proportional to 99,163,009.40, 148,744,514.10 and 60,363,879.80 is: 90,545,819.70
Step by Step Solution
- Step 1: Write the proportion equation
99,163,009.40 : 148,744,514.10 = 60,363,879.80 : x - Step 2: Convert to fraction form
99,163,009.40/148,744,514.10 = 60,363,879.80/x - Step 3: Cross multiply
99,163,009.40x = 148,744,514.10 × 60,363,879.80 - Step 4: Simplify right side
99,163,009.40x = 8,978,795,970,041,804 - Step 5: Solve for x
x = 8,978,795,970,041,804/99,163,009.40 - Step 6: Final answer
x = 90,545,819.70
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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.