Finding the Fourth Proportional to 20,479,023.99, 30,713,220.36 and 8,182,475.55
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Solution
The fourth proportional to 20,479,023.99, 30,713,220.36 and 8,182,475.55 is: 12,271,589.45
Step by Step Solution
- Step 1: Write the proportion equation
20,479,023.99 : 30,713,220.36 = 8,182,475.55 : x - Step 2: Convert to fraction form
20,479,023.99/30,713,220.36 = 8,182,475.55/x - Step 3: Cross multiply
20,479,023.99x = 30,713,220.36 × 8,182,475.55 - Step 4: Simplify right side
20,479,023.99x = 251,310,174,657,462.19 - Step 5: Solve for x
x = 251,310,174,657,462.19/20,479,023.99 - Step 6: Final answer
x = 12,271,589.45
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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.