Finding the Fourth Proportional to 1,120,757,135.40, 1,681,135,703.10 and 1,105,451,634.60
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Solution
The fourth proportional to 1,120,757,135.40, 1,681,135,703.10 and 1,105,451,634.60 is: 1,658,177,451.90
Step by Step Solution
- Step 1: Write the proportion equation
1,120,757,135.40 : 1,681,135,703.10 = 1,105,451,634.60 : x - Step 2: Convert to fraction form
1,120,757,135.40/1,681,135,703.10 = 1,105,451,634.60/x - Step 3: Cross multiply
1,120,757,135.40x = 1,681,135,703.10 × 1,105,451,634.60 - Step 4: Simplify right side
1,120,757,135.40x = 1,858,414,210,976,315,136 - Step 5: Solve for x
x = 1,858,414,210,976,315,136/1,120,757,135.40 - Step 6: Final answer
x = 1,658,177,451.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.