Finding the Fourth Proportional to 86,775,576.94, 130,170,930.45 and 28,465,772.14
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Solution
The fourth proportional to 86,775,576.94, 130,170,930.45 and 28,465,772.14 is: 42,701,139.84
Step by Step Solution
- Step 1: Write the proportion equation
86,775,576.94 : 130,170,930.45 = 28,465,772.14 : x - Step 2: Convert to fraction form
86,775,576.94/130,170,930.45 = 28,465,772.14/x - Step 3: Cross multiply
86,775,576.94x = 130,170,930.45 × 28,465,772.14 - Step 4: Simplify right side
86,775,576.94x = 3,705,416,045,441,488 - Step 5: Solve for x
x = 3,705,416,045,441,488/86,775,576.94 - Step 6: Final answer
x = 42,701,139.84
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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.