Finding the Fourth Proportional to 92,969,941.80, 139,454,912.70 and 87,301,237.80
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Solution
The fourth proportional to 92,969,941.80, 139,454,912.70 and 87,301,237.80 is: 130,951,856.70
Step by Step Solution
- Step 1: Write the proportion equation
92,969,941.80 : 139,454,912.70 = 87,301,237.80 : x - Step 2: Convert to fraction form
92,969,941.80/139,454,912.70 = 87,301,237.80/x - Step 3: Cross multiply
92,969,941.80x = 139,454,912.70 × 87,301,237.80 - Step 4: Simplify right side
92,969,941.80x = 12,174,586,496,000,938 - Step 5: Solve for x
x = 12,174,586,496,000,938/92,969,941.80 - Step 6: Final answer
x = 130,951,856.70
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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.