Finding the Fourth Proportional to 235,188,393.12, 324,551,488.64 and 129,340,895.49
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Solution
The fourth proportional to 235,188,393.12, 324,551,488.64 and 129,340,895.49 is: 178,485,764.61
Step by Step Solution
- Step 1: Write the proportion equation
235,188,393.12 : 324,551,488.64 = 129,340,895.49 : x - Step 2: Convert to fraction form
235,188,393.12/324,551,488.64 = 129,340,895.49/x - Step 3: Cross multiply
235,188,393.12x = 324,551,488.64 × 129,340,895.49 - Step 4: Simplify right side
235,188,393.12x = 41,977,780,172,663,456 - Step 5: Solve for x
x = 41,977,780,172,663,456/235,188,393.12 - Step 6: Final answer
x = 178,485,764.61
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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.