Finding the Fourth Proportional to 243,493,435.62, 336,011,938.83 and 131,981,882.18
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Solution
The fourth proportional to 243,493,435.62, 336,011,938.83 and 131,981,882.18 is: 182,130,117.84
Step by Step Solution
- Step 1: Write the proportion equation
243,493,435.62 : 336,011,938.83 = 131,981,882.18 : x - Step 2: Convert to fraction form
243,493,435.62/336,011,938.83 = 131,981,882.18/x - Step 3: Cross multiply
243,493,435.62x = 336,011,938.83 × 131,981,882.18 - Step 4: Simplify right side
243,493,435.62x = 44,347,488,122,713,064 - Step 5: Solve for x
x = 44,347,488,122,713,064/243,493,435.62 - Step 6: Final answer
x = 182,130,117.84
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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.