Finding the Fourth Proportional to 427,468,154.68, 641,616,865.08 and 206,295,143.38
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Solution
The fourth proportional to 427,468,154.68, 641,616,865.08 and 206,295,143.38 is: 309,642,816.03
Step by Step Solution
- Step 1: Write the proportion equation
427,468,154.68 : 641,616,865.08 = 206,295,143.38 : x - Step 2: Convert to fraction form
427,468,154.68/641,616,865.08 = 206,295,143.38/x - Step 3: Cross multiply
427,468,154.68x = 641,616,865.08 × 206,295,143.38 - Step 4: Simplify right side
427,468,154.68x = 132,362,443,176,704,720 - Step 5: Solve for x
x = 132,362,443,176,704,720/427,468,154.68 - Step 6: Final answer
x = 309,642,816.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.