Finding the Fourth Proportional to 121,135,647.60, 181,703,471.40 and 121,135,647.60
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Solution
The fourth proportional to 121,135,647.60, 181,703,471.40 and 121,135,647.60 is: 181,703,471.40
Step by Step Solution
- Step 1: Write the proportion equation
121,135,647.60 : 181,703,471.40 = 121,135,647.60 : x - Step 2: Convert to fraction form
121,135,647.60/181,703,471.40 = 121,135,647.60/x - Step 3: Cross multiply
121,135,647.60x = 181,703,471.40 × 121,135,647.60 - Step 4: Simplify right side
121,135,647.60x = 22,010,767,679,207,080 - Step 5: Solve for x
x = 22,010,767,679,207,080/121,135,647.60 - Step 6: Final answer
x = 181,703,471.40
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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.