Finding the Fourth Proportional to 324,758,811.10, 487,138,216.65 and 292,510,183.90
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Solution
The fourth proportional to 324,758,811.10, 487,138,216.65 and 292,510,183.90 is: 438,765,275.85
Step by Step Solution
- Step 1: Write the proportion equation
324,758,811.10 : 487,138,216.65 = 292,510,183.90 : x - Step 2: Convert to fraction form
324,758,811.10/487,138,216.65 = 292,510,183.90/x - Step 3: Cross multiply
324,758,811.10x = 487,138,216.65 × 292,510,183.90 - Step 4: Simplify right side
324,758,811.10x = 142,492,889,337,009,520 - Step 5: Solve for x
x = 142,492,889,337,009,520/324,758,811.10 - Step 6: Final answer
x = 438,765,275.85
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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.