Finding the Fourth Proportional to 86,935,135.20, 130,119,267.60 and 86,935,135.20
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Solution
The fourth proportional to 86,935,135.20, 130,119,267.60 and 86,935,135.20 is: 130,119,267.60
Step by Step Solution
- Step 1: Write the proportion equation
86,935,135.20 : 130,119,267.60 = 86,935,135.20 : x - Step 2: Convert to fraction form
86,935,135.20/130,119,267.60 = 86,935,135.20/x - Step 3: Cross multiply
86,935,135.20x = 130,119,267.60 × 86,935,135.20 - Step 4: Simplify right side
86,935,135.20x = 11,311,936,120,930,980 - Step 5: Solve for x
x = 11,311,936,120,930,980/86,935,135.20 - Step 6: Final answer
x = 130,119,267.60
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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.