Finding the Fourth Proportional to 38,861,403.20, 58,329,429.60 and 19,713,780.80
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Solution
The fourth proportional to 38,861,403.20, 58,329,429.60 and 19,713,780.80 is: 29,589,605.49
Step by Step Solution
- Step 1: Write the proportion equation
38,861,403.20 : 58,329,429.60 = 19,713,780.80 : x - Step 2: Convert to fraction form
38,861,403.20/58,329,429.60 = 19,713,780.80/x - Step 3: Cross multiply
38,861,403.20x = 58,329,429.60 × 19,713,780.80 - Step 4: Simplify right side
38,861,403.20x = 1,149,893,589,323,431.75 - Step 5: Solve for x
x = 1,149,893,589,323,431.75/38,861,403.20 - Step 6: Final answer
x = 29,589,605.49
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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.