Finding the Fourth Proportional to 125,036,638.28, 187,555,369.15 and 31,663,558.68
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Solution
The fourth proportional to 125,036,638.28, 187,555,369.15 and 31,663,558.68 is: 47,495,442.28
Step by Step Solution
- Step 1: Write the proportion equation
125,036,638.28 : 187,555,369.15 = 31,663,558.68 : x - Step 2: Convert to fraction form
125,036,638.28/187,555,369.15 = 31,663,558.68/x - Step 3: Cross multiply
125,036,638.28x = 187,555,369.15 × 31,663,558.68 - Step 4: Simplify right side
125,036,638.28x = 5,938,670,435,892,310 - Step 5: Solve for x
x = 5,938,670,435,892,310/125,036,638.28 - Step 6: Final answer
x = 47,495,442.28
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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.