Finding the Fourth Proportional to 99,657,958.70, 149,486,938.05 and 45,910,246.70
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Solution
The fourth proportional to 99,657,958.70, 149,486,938.05 and 45,910,246.70 is: 68,865,370.05
Step by Step Solution
- Step 1: Write the proportion equation
99,657,958.70 : 149,486,938.05 = 45,910,246.70 : x - Step 2: Convert to fraction form
99,657,958.70/149,486,938.05 = 45,910,246.70/x - Step 3: Cross multiply
99,657,958.70x = 149,486,938.05 × 45,910,246.70 - Step 4: Simplify right side
99,657,958.70x = 6,862,982,204,303,118 - Step 5: Solve for x
x = 6,862,982,204,303,118/99,657,958.70 - Step 6: Final answer
x = 68,865,370.05
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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.