Finding the Fourth Proportional to 7,019,657.51, 9,686,236.77 and 4,117,989.65
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Solution
The fourth proportional to 7,019,657.51, 9,686,236.77 and 4,117,989.65 is: 5,682,303.26
Step by Step Solution
- Step 1: Write the proportion equation
7,019,657.51 : 9,686,236.77 = 4,117,989.65 : x - Step 2: Convert to fraction form
7,019,657.51/9,686,236.77 = 4,117,989.65/x - Step 3: Cross multiply
7,019,657.51x = 9,686,236.77 × 4,117,989.65 - Step 4: Simplify right side
7,019,657.51x = 39,887,822,717,878.24 - Step 5: Solve for x
x = 39,887,822,717,878.24/7,019,657.51 - Step 6: Final answer
x = 5,682,303.26
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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.