Finding the Fourth Proportional to 21,526,777.12, 32,305,296.80 and 19,468,605.76
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Solution
The fourth proportional to 21,526,777.12, 32,305,296.80 and 19,468,605.76 is: 29,216,593.08
Step by Step Solution
- Step 1: Write the proportion equation
21,526,777.12 : 32,305,296.80 = 19,468,605.76 : x - Step 2: Convert to fraction form
21,526,777.12/32,305,296.80 = 19,468,605.76/x - Step 3: Cross multiply
21,526,777.12x = 32,305,296.80 × 19,468,605.76 - Step 4: Simplify right side
21,526,777.12x = 628,939,087,358,989.62 - Step 5: Solve for x
x = 628,939,087,358,989.62/21,526,777.12 - Step 6: Final answer
x = 29,216,593.08
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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.