Finding the Fourth Proportional to 20,995,747.75, 31,493,621.63 and 5,039,395.75
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Solution
The fourth proportional to 20,995,747.75, 31,493,621.63 and 5,039,395.75 is: 7,559,093.63
Step by Step Solution
- Step 1: Write the proportion equation
20,995,747.75 : 31,493,621.63 = 5,039,395.75 : x - Step 2: Convert to fraction form
20,995,747.75/31,493,621.63 = 5,039,395.75/x - Step 3: Cross multiply
20,995,747.75x = 31,493,621.63 × 5,039,395.75 - Step 4: Simplify right side
20,995,747.75x = 158,708,822,994,330.06 - Step 5: Solve for x
x = 158,708,822,994,330.06/20,995,747.75 - Step 6: Final answer
x = 7,559,093.63
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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.