Finding the Fourth Proportional to 216,513,158.40, 324,769,737.60 and 201,207,657.60
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Solution
The fourth proportional to 216,513,158.40, 324,769,737.60 and 201,207,657.60 is: 301,811,486.40
Step by Step Solution
- Step 1: Write the proportion equation
216,513,158.40 : 324,769,737.60 = 201,207,657.60 : x - Step 2: Convert to fraction form
216,513,158.40/324,769,737.60 = 201,207,657.60/x - Step 3: Cross multiply
216,513,158.40x = 324,769,737.60 × 201,207,657.60 - Step 4: Simplify right side
216,513,158.40x = 65,346,158,161,862,648 - Step 5: Solve for x
x = 65,346,158,161,862,648/216,513,158.40 - Step 6: Final answer
x = 301,811,486.40
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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.