Finding the Fourth Proportional to 87,948,372.98, 121,368,896.49 and 48,790,150.94
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Solution
The fourth proportional to 87,948,372.98, 121,368,896.49 and 48,790,150.94 is: 67,330,486.95
Step by Step Solution
- Step 1: Write the proportion equation
87,948,372.98 : 121,368,896.49 = 48,790,150.94 : x - Step 2: Convert to fraction form
87,948,372.98/121,368,896.49 = 48,790,150.94/x - Step 3: Cross multiply
87,948,372.98x = 121,368,896.49 × 48,790,150.94 - Step 4: Simplify right side
87,948,372.98x = 5,921,606,779,168,336 - Step 5: Solve for x
x = 5,921,606,779,168,336/87,948,372.98 - Step 6: Final answer
x = 67,330,486.95
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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.