Finding the Fourth Proportional to 420,677,598.97, 631,029,253.71 and 144,324,936.68
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Solution
The fourth proportional to 420,677,598.97, 631,029,253.71 and 144,324,936.68 is: 216,491,815.37
Step by Step Solution
- Step 1: Write the proportion equation
420,677,598.97 : 631,029,253.71 = 144,324,936.68 : x - Step 2: Convert to fraction form
420,677,598.97/631,029,253.71 = 144,324,936.68/x - Step 3: Cross multiply
420,677,598.97x = 631,029,253.71 × 144,324,936.68 - Step 4: Simplify right side
420,677,598.97x = 91,073,257,084,923,408 - Step 5: Solve for x
x = 91,073,257,084,923,408/420,677,598.97 - Step 6: Final answer
x = 216,491,815.37
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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.