Finding the Fourth Proportional to 99,681,720.70, 149,522,581.05 and 86,244,792.70
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Solution
The fourth proportional to 99,681,720.70, 149,522,581.05 and 86,244,792.70 is: 129,367,189.05
Step by Step Solution
- Step 1: Write the proportion equation
99,681,720.70 : 149,522,581.05 = 86,244,792.70 : x - Step 2: Convert to fraction form
99,681,720.70/149,522,581.05 = 86,244,792.70/x - Step 3: Cross multiply
99,681,720.70x = 149,522,581.05 × 86,244,792.70 - Step 4: Simplify right side
99,681,720.70x = 12,895,544,006,626,200 - Step 5: Solve for x
x = 12,895,544,006,626,200/99,681,720.70 - Step 6: Final answer
x = 129,367,189.05
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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.