Finding the Fourth Proportional to 106,511,588.20, 159,767,382.30 and 87,363,965.80
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Solution
The fourth proportional to 106,511,588.20, 159,767,382.30 and 87,363,965.80 is: 131,045,948.70
Step by Step Solution
- Step 1: Write the proportion equation
106,511,588.20 : 159,767,382.30 = 87,363,965.80 : x - Step 2: Convert to fraction form
106,511,588.20/159,767,382.30 = 87,363,965.80/x - Step 3: Cross multiply
106,511,588.20x = 159,767,382.30 × 87,363,965.80 - Step 4: Simplify right side
106,511,588.20x = 13,957,912,123,212,726 - Step 5: Solve for x
x = 13,957,912,123,212,726/106,511,588.20 - Step 6: Final answer
x = 131,045,948.70
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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.