Finding the Fourth Proportional to 405,431,752.38, 559,474,269.99 and 229,209,211.74
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Solution
The fourth proportional to 405,431,752.38, 559,474,269.99 and 229,209,211.74 is: 316,296,529.96
Step by Step Solution
- Step 1: Write the proportion equation
405,431,752.38 : 559,474,269.99 = 229,209,211.74 : x - Step 2: Convert to fraction form
405,431,752.38/559,474,269.99 = 229,209,211.74/x - Step 3: Cross multiply
405,431,752.38x = 559,474,269.99 × 229,209,211.74 - Step 4: Simplify right side
405,431,752.38x = 128,236,656,413,219,840 - Step 5: Solve for x
x = 128,236,656,413,219,840/405,431,752.38 - Step 6: Final answer
x = 316,296,529.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.