Finding the Fourth Proportional to 420,677,595.97, 631,029,249.21 and 144,324,933.68
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Solution
The fourth proportional to 420,677,595.97, 631,029,249.21 and 144,324,933.68 is: 216,491,810.87
Step by Step Solution
- Step 1: Write the proportion equation
420,677,595.97 : 631,029,249.21 = 144,324,933.68 : x - Step 2: Convert to fraction form
420,677,595.97/631,029,249.21 = 144,324,933.68/x - Step 3: Cross multiply
420,677,595.97x = 631,029,249.21 × 144,324,933.68 - Step 4: Simplify right side
420,677,595.97x = 91,073,254,542,373,456 - Step 5: Solve for x
x = 91,073,254,542,373,456/420,677,595.97 - Step 6: Final answer
x = 216,491,810.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.