Finding the Fourth Proportional to 384,916,538.80, 576,702,961.80 and 331,168,826.80
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Solution
The fourth proportional to 384,916,538.80, 576,702,961.80 and 331,168,826.80 is: 496,175,206.88
Step by Step Solution
- Step 1: Write the proportion equation
384,916,538.80 : 576,702,961.80 = 331,168,826.80 : x - Step 2: Convert to fraction form
384,916,538.80/576,702,961.80 = 331,168,826.80/x - Step 3: Cross multiply
384,916,538.80x = 576,702,961.80 × 331,168,826.80 - Step 4: Simplify right side
384,916,538.80x = 190,986,043,271,391,200 - Step 5: Solve for x
x = 190,986,043,271,391,200/384,916,538.80 - Step 6: Final answer
x = 496,175,206.88
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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.