Finding the Fourth Proportional to 103,225,082.16, 142,449,517.68 and 56,814,339.62
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Solution
The fourth proportional to 103,225,082.16, 142,449,517.68 and 56,814,339.62 is: 78,403,185.61
Step by Step Solution
- Step 1: Write the proportion equation
103,225,082.16 : 142,449,517.68 = 56,814,339.62 : x - Step 2: Convert to fraction form
103,225,082.16/142,449,517.68 = 56,814,339.62/x - Step 3: Cross multiply
103,225,082.16x = 142,449,517.68 × 56,814,339.62 - Step 4: Simplify right side
103,225,082.16x = 8,093,175,276,176,715 - Step 5: Solve for x
x = 8,093,175,276,176,715/103,225,082.16 - Step 6: Final answer
x = 78,403,185.61
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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.