Finding the Fourth Proportional to 75,139,453.84, 112,630,516.24 and 31,445,246.72
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Solution
The fourth proportional to 75,139,453.84, 112,630,516.24 and 31,445,246.72 is: 47,134,949.62
Step by Step Solution
- Step 1: Write the proportion equation
75,139,453.84 : 112,630,516.24 = 31,445,246.72 : x - Step 2: Convert to fraction form
75,139,453.84/112,630,516.24 = 31,445,246.72/x - Step 3: Cross multiply
75,139,453.84x = 112,630,516.24 × 31,445,246.72 - Step 4: Simplify right side
75,139,453.84x = 3,541,694,371,367,766.50 - Step 5: Solve for x
x = 3,541,694,371,367,766.50/75,139,453.84 - Step 6: Final answer
x = 47,134,949.62
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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.