Finding the Fourth Proportional to 2,130,311,135.20, 3,193,451,163.60 and 1,257,582,661.60
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Solution
The fourth proportional to 2,130,311,135.20, 3,193,451,163.60 and 1,257,582,661.60 is: 1,885,184,162.84
Step by Step Solution
- Step 1: Write the proportion equation
2,130,311,135.20 : 3,193,451,163.60 = 1,257,582,661.60 : x - Step 2: Convert to fraction form
2,130,311,135.20/3,193,451,163.60 = 1,257,582,661.60/x - Step 3: Cross multiply
2,130,311,135.20x = 3,193,451,163.60 × 1,257,582,661.60 - Step 4: Simplify right side
2,130,311,135.20x = 4,016,028,814,009,704,448 - Step 5: Solve for x
x = 4,016,028,814,009,704,448/2,130,311,135.20 - Step 6: Final answer
x = 1,885,184,162.84
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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.