Finding the Fourth Proportional to 1,543,693,529.65, 2,130,295,450.35 and 838,843,834.36
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Solution
The fourth proportional to 1,543,693,529.65, 2,130,295,450.35 and 838,843,834.36 is: 1,157,603,610.80
Step by Step Solution
- Step 1: Write the proportion equation
1,543,693,529.65 : 2,130,295,450.35 = 838,843,834.36 : x - Step 2: Convert to fraction form
1,543,693,529.65/2,130,295,450.35 = 838,843,834.36/x - Step 3: Cross multiply
1,543,693,529.65x = 2,130,295,450.35 × 838,843,834.36 - Step 4: Simplify right side
1,543,693,529.65x = 1,786,985,203,891,256,832 - Step 5: Solve for x
x = 1,786,985,203,891,256,832/1,543,693,529.65 - Step 6: Final answer
x = 1,157,603,610.80
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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.