Finding the Fourth Proportional to 641,202,371.91, 884,784,623.49 and 358,960,267.89
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Solution
The fourth proportional to 641,202,371.91, 884,784,623.49 and 358,960,267.89 is: 495,323,378.99
Step by Step Solution
- Step 1: Write the proportion equation
641,202,371.91 : 884,784,623.49 = 358,960,267.89 : x - Step 2: Convert to fraction form
641,202,371.91/884,784,623.49 = 358,960,267.89/x - Step 3: Cross multiply
641,202,371.91x = 884,784,623.49 × 358,960,267.89 - Step 4: Simplify right side
641,202,371.91x = 317,602,525,472,923,200 - Step 5: Solve for x
x = 317,602,525,472,923,200/641,202,371.91 - Step 6: Final answer
x = 495,323,378.99
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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.