Finding the Fourth Proportional to 43,610,515.20, 65,415,772.80 and 40,776,163.20
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Solution
The fourth proportional to 43,610,515.20, 65,415,772.80 and 40,776,163.20 is: 61,164,244.80
Step by Step Solution
- Step 1: Write the proportion equation
43,610,515.20 : 65,415,772.80 = 40,776,163.20 : x - Step 2: Convert to fraction form
43,610,515.20/65,415,772.80 = 40,776,163.20/x - Step 3: Cross multiply
43,610,515.20x = 65,415,772.80 × 40,776,163.20 - Step 4: Simplify right side
43,610,515.20x = 2,667,404,227,546,921 - Step 5: Solve for x
x = 2,667,404,227,546,921/43,610,515.20 - Step 6: Final answer
x = 61,164,244.80
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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.