Finding the Fourth Proportional to 258,440,288.96, 356,651,884.68 and 140,965,649.84
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Solution
The fourth proportional to 258,440,288.96, 356,651,884.68 and 140,965,649.84 is: 194,534,934.52
Step by Step Solution
- Step 1: Write the proportion equation
258,440,288.96 : 356,651,884.68 = 140,965,649.84 : x - Step 2: Convert to fraction form
258,440,288.96/356,651,884.68 = 140,965,649.84/x - Step 3: Cross multiply
258,440,288.96x = 356,651,884.68 × 140,965,649.84 - Step 4: Simplify right side
258,440,288.96x = 50,275,664,690,576,944 - Step 5: Solve for x
x = 50,275,664,690,576,944/258,440,288.96 - Step 6: Final answer
x = 194,534,934.52
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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.