Finding the Fourth Proportional to 53,018,134.30, 79,511,455.05 and 20,651,409.10
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Solution
The fourth proportional to 53,018,134.30, 79,511,455.05 and 20,651,409.10 is: 30,970,980.18
Step by Step Solution
- Step 1: Write the proportion equation
53,018,134.30 : 79,511,455.05 = 20,651,409.10 : x - Step 2: Convert to fraction form
53,018,134.30/79,511,455.05 = 20,651,409.10/x - Step 3: Cross multiply
53,018,134.30x = 79,511,455.05 × 20,651,409.10 - Step 4: Simplify right side
53,018,134.30x = 1,642,023,586,373,811 - Step 5: Solve for x
x = 1,642,023,586,373,811/53,018,134.30 - Step 6: Final answer
x = 30,970,980.18
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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.