Finding the Fourth Proportional to 13,568,417.68, 20,344,656.12 and 5,481,649.84
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Solution
The fourth proportional to 13,568,417.68, 20,344,656.12 and 5,481,649.84 is: 8,219,254.71
Step by Step Solution
- Step 1: Write the proportion equation
13,568,417.68 : 20,344,656.12 = 5,481,649.84 : x - Step 2: Convert to fraction form
13,568,417.68/20,344,656.12 = 5,481,649.84/x - Step 3: Cross multiply
13,568,417.68x = 20,344,656.12 × 5,481,649.84 - Step 4: Simplify right side
13,568,417.68x = 111,522,280,965,053.03 - Step 5: Solve for x
x = 111,522,280,965,053.03/13,568,417.68 - Step 6: Final answer
x = 8,219,254.71
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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.