Finding the Fourth Proportional to 297,788,663.80, 446,682,995.70 and 221,261,159.80
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Solution
The fourth proportional to 297,788,663.80, 446,682,995.70 and 221,261,159.80 is: 331,891,739.70
Step by Step Solution
- Step 1: Write the proportion equation
297,788,663.80 : 446,682,995.70 = 221,261,159.80 : x - Step 2: Convert to fraction form
297,788,663.80/446,682,995.70 = 221,261,159.80/x - Step 3: Cross multiply
297,788,663.80x = 446,682,995.70 × 221,261,159.80 - Step 4: Simplify right side
297,788,663.80x = 98,833,597,691,520,416 - Step 5: Solve for x
x = 98,833,597,691,520,416/297,788,663.80 - Step 6: Final answer
x = 331,891,739.70
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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.