Finding the Fourth Proportional to 58,138,380.80, 87,207,571.20 and 46,800,972.80
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Solution
The fourth proportional to 58,138,380.80, 87,207,571.20 and 46,800,972.80 is: 70,201,459.20
Step by Step Solution
- Step 1: Write the proportion equation
58,138,380.80 : 87,207,571.20 = 46,800,972.80 : x - Step 2: Convert to fraction form
58,138,380.80/87,207,571.20 = 46,800,972.80/x - Step 3: Cross multiply
58,138,380.80x = 87,207,571.20 × 46,800,972.80 - Step 4: Simplify right side
58,138,380.80x = 4,081,399,167,685,263 - Step 5: Solve for x
x = 4,081,399,167,685,263/58,138,380.80 - Step 6: Final answer
x = 70,201,459.20
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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.