Finding the Fourth Proportional to 68,002,405.65, 102,004,715.68 and 19,480,070.88
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Solution
The fourth proportional to 68,002,405.65, 102,004,715.68 and 19,480,070.88 is: 29,220,423.49
Step by Step Solution
- Step 1: Write the proportion equation
68,002,405.65 : 102,004,715.68 = 19,480,070.88 : x - Step 2: Convert to fraction form
68,002,405.65/102,004,715.68 = 19,480,070.88/x - Step 3: Cross multiply
68,002,405.65x = 102,004,715.68 × 19,480,070.88 - Step 4: Simplify right side
68,002,405.65x = 1,987,059,091,491,947 - Step 5: Solve for x
x = 1,987,059,091,491,947/68,002,405.65 - Step 6: Final answer
x = 29,220,423.49
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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.