Finding the Fourth Proportional to 641,576,157.84, 962,472,882.33 and 221,283,406.71
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Solution
The fourth proportional to 641,576,157.84, 962,472,882.33 and 221,283,406.71 is: 331,962,582.56
Step by Step Solution
- Step 1: Write the proportion equation
641,576,157.84 : 962,472,882.33 = 221,283,406.71 : x - Step 2: Convert to fraction form
641,576,157.84/962,472,882.33 = 221,283,406.71/x - Step 3: Cross multiply
641,576,157.84x = 962,472,882.33 × 221,283,406.71 - Step 4: Simplify right side
641,576,157.84x = 212,979,278,267,975,392 - Step 5: Solve for x
x = 212,979,278,267,975,392/641,576,157.84 - Step 6: Final answer
x = 331,962,582.56
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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.