Finding the Fourth Proportional to 111,687,943.68, 167,530,671.36 and 43,578,478.08
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Solution
The fourth proportional to 111,687,943.68, 167,530,671.36 and 43,578,478.08 is: 65,367,231.67
Step by Step Solution
- Step 1: Write the proportion equation
111,687,943.68 : 167,530,671.36 = 43,578,478.08 : x - Step 2: Convert to fraction form
111,687,943.68/167,530,671.36 = 43,578,478.08/x - Step 3: Cross multiply
111,687,943.68x = 167,530,671.36 × 43,578,478.08 - Step 4: Simplify right side
111,687,943.68x = 7,300,731,689,589,444 - Step 5: Solve for x
x = 7,300,731,689,589,444/111,687,943.68 - Step 6: Final answer
x = 65,367,231.67
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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.