Finding the Fourth Proportional to 810,355,779.05, 1,118,204,881.85 and 448,192,191.67
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Solution
The fourth proportional to 810,355,779.05, 1,118,204,881.85 and 448,192,191.67 is: 618,457,608.00
Step by Step Solution
- Step 1: Write the proportion equation
810,355,779.05 : 1,118,204,881.85 = 448,192,191.67 : x - Step 2: Convert to fraction form
810,355,779.05/1,118,204,881.85 = 448,192,191.67/x - Step 3: Cross multiply
810,355,779.05x = 1,118,204,881.85 × 448,192,191.67 - Step 4: Simplify right side
810,355,779.05x = 501,170,696,733,260,032 - Step 5: Solve for x
x = 501,170,696,733,260,032/810,355,779.05 - Step 6: Final answer
x = 618,457,608.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.