Finding the Fourth Proportional to 20,219,777.28, 30,341,650.68 and 7,449,242.76
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Solution
The fourth proportional to 20,219,777.28, 30,341,650.68 and 7,449,242.76 is: 11,178,279.49
Step by Step Solution
- Step 1: Write the proportion equation
20,219,777.28 : 30,341,650.68 = 7,449,242.76 : x - Step 2: Convert to fraction form
20,219,777.28/30,341,650.68 = 7,449,242.76/x - Step 3: Cross multiply
20,219,777.28x = 30,341,650.68 × 7,449,242.76 - Step 4: Simplify right side
20,219,777.28x = 226,022,321,654,439.06 - Step 5: Solve for x
x = 226,022,321,654,439.06/20,219,777.28 - Step 6: Final answer
x = 11,178,279.49
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1.5x scale
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.