Finding the Fourth Proportional to 21,462,465.20, 32,193,697.80 and 19,950,810.80
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Solution
The fourth proportional to 21,462,465.20, 32,193,697.80 and 19,950,810.80 is: 29,926,216.20
Step by Step Solution
- Step 1: Write the proportion equation
21,462,465.20 : 32,193,697.80 = 19,950,810.80 : x - Step 2: Convert to fraction form
21,462,465.20/32,193,697.80 = 19,950,810.80/x - Step 3: Cross multiply
21,462,465.20x = 32,193,697.80 × 19,950,810.80 - Step 4: Simplify right side
21,462,465.20x = 642,290,373,760,176.25 - Step 5: Solve for x
x = 642,290,373,760,176.25/21,462,465.20 - Step 6: Final answer
x = 29,926,216.20
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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.