Finding the Fourth Proportional to 99,551,719.80, 149,327,579.70 and 79,396,327.80
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Solution
The fourth proportional to 99,551,719.80, 149,327,579.70 and 79,396,327.80 is: 119,094,491.70
Step by Step Solution
- Step 1: Write the proportion equation
99,551,719.80 : 149,327,579.70 = 79,396,327.80 : x - Step 2: Convert to fraction form
99,551,719.80/149,327,579.70 = 79,396,327.80/x - Step 3: Cross multiply
99,551,719.80x = 149,327,579.70 × 79,396,327.80 - Step 4: Simplify right side
99,551,719.80x = 11,856,061,467,441,824 - Step 5: Solve for x
x = 11,856,061,467,441,824/99,551,719.80 - Step 6: Final answer
x = 119,094,491.70
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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.