Finding the Fourth Proportional to 639,083,282.40, 958,624,923.60 and 329,146,891.20
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Solution
The fourth proportional to 639,083,282.40, 958,624,923.60 and 329,146,891.20 is: 493,720,336.80
Step by Step Solution
- Step 1: Write the proportion equation
639,083,282.40 : 958,624,923.60 = 329,146,891.20 : x - Step 2: Convert to fraction form
639,083,282.40/958,624,923.60 = 329,146,891.20/x - Step 3: Cross multiply
639,083,282.40x = 958,624,923.60 × 329,146,891.20 - Step 4: Simplify right side
639,083,282.40x = 315,528,413,429,777,536 - Step 5: Solve for x
x = 315,528,413,429,777,536/639,083,282.40 - Step 6: Final answer
x = 493,720,336.80
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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.