Finding the Fourth Proportional to 21,498,457.44, 32,252,235.12 and 7,120,711.20
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Solution
The fourth proportional to 21,498,457.44, 32,252,235.12 and 7,120,711.20 is: 10,682,573.50
Step by Step Solution
- Step 1: Write the proportion equation
21,498,457.44 : 32,252,235.12 = 7,120,711.20 : x - Step 2: Convert to fraction form
21,498,457.44/32,252,235.12 = 7,120,711.20/x - Step 3: Cross multiply
21,498,457.44x = 32,252,235.12 × 7,120,711.20 - Step 4: Simplify right side
21,498,457.44x = 229,658,851,844,017.34 - Step 5: Solve for x
x = 229,658,851,844,017.34/21,498,457.44 - Step 6: Final answer
x = 10,682,573.50
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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.