Finding the Fourth Proportional to 309,337,711.05, 428,010,159.33 and 269,727,780.63
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Solution
The fourth proportional to 309,337,711.05, 428,010,159.33 and 269,727,780.63 is: 373,204,514.80
Step by Step Solution
- Step 1: Write the proportion equation
309,337,711.05 : 428,010,159.33 = 269,727,780.63 : x - Step 2: Convert to fraction form
309,337,711.05/428,010,159.33 = 269,727,780.63/x - Step 3: Cross multiply
309,337,711.05x = 428,010,159.33 × 269,727,780.63 - Step 4: Simplify right side
309,337,711.05x = 115,446,230,363,173,584 - Step 5: Solve for x
x = 115,446,230,363,173,584/309,337,711.05 - Step 6: Final answer
x = 373,204,514.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.