Finding the Fourth Proportional to 81,549,486.30, 122,263,130.70 and 49,193,846.76
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Solution
The fourth proportional to 81,549,486.30, 122,263,130.70 and 49,193,846.76 is: 73,753,912.98
Step by Step Solution
- Step 1: Write the proportion equation
81,549,486.30 : 122,263,130.70 = 49,193,846.76 : x - Step 2: Convert to fraction form
81,549,486.30/122,263,130.70 = 49,193,846.76/x - Step 3: Cross multiply
81,549,486.30x = 122,263,130.70 × 49,193,846.76 - Step 4: Simplify right side
81,549,486.30x = 6,014,593,716,053,651 - Step 5: Solve for x
x = 6,014,593,716,053,651/81,549,486.30 - Step 6: Final answer
x = 73,753,912.98
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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.