Finding the Fourth Proportional to 25,281,578.05, 34,889,565.78 and 14,268,708.70
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Solution
The fourth proportional to 25,281,578.05, 34,889,565.78 and 14,268,708.70 is: 19,691,375.66
Step by Step Solution
- Step 1: Write the proportion equation
25,281,578.05 : 34,889,565.78 = 14,268,708.70 : x - Step 2: Convert to fraction form
25,281,578.05/34,889,565.78 = 14,268,708.70/x - Step 3: Cross multiply
25,281,578.05x = 34,889,565.78 × 14,268,708.70 - Step 4: Simplify right side
25,281,578.05x = 497,829,050,697,084.38 - Step 5: Solve for x
x = 497,829,050,697,084.38/25,281,578.05 - Step 6: Final answer
x = 19,691,375.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.