Finding the Fourth Proportional to 456,323,229.66, 684,436,320.97 and 128,790,644.70
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Solution
The fourth proportional to 456,323,229.66, 684,436,320.97 and 128,790,644.70 is: 193,172,271.99
Step by Step Solution
- Step 1: Write the proportion equation
456,323,229.66 : 684,436,320.97 = 128,790,644.70 : x - Step 2: Convert to fraction form
456,323,229.66/684,436,320.97 = 128,790,644.70/x - Step 3: Cross multiply
456,323,229.66x = 684,436,320.97 × 128,790,644.70 - Step 4: Simplify right side
456,323,229.66x = 88,148,995,033,822,432 - Step 5: Solve for x
x = 88,148,995,033,822,432/456,323,229.66 - Step 6: Final answer
x = 193,172,271.99
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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.