Finding the Fourth Proportional to 12,544,775.36, 18,814,918.36 and 7,982,271.28
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Solution
The fourth proportional to 12,544,775.36, 18,814,918.36 and 7,982,271.28 is: 11,971,978.62
Step by Step Solution
- Step 1: Write the proportion equation
12,544,775.36 : 18,814,918.36 = 7,982,271.28 : x - Step 2: Convert to fraction form
12,544,775.36/18,814,918.36 = 7,982,271.28/x - Step 3: Cross multiply
12,544,775.36x = 18,814,918.36 × 7,982,271.28 - Step 4: Simplify right side
12,544,775.36x = 150,185,782,420,661.34 - Step 5: Solve for x
x = 150,185,782,420,661.34/12,544,775.36 - Step 6: Final answer
x = 11,971,978.62
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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.