Finding the Fourth Proportional to 21,185,208.53, 29,235,470.24 and 11,892,776.14
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Solution
The fourth proportional to 21,185,208.53, 29,235,470.24 and 11,892,776.14 is: 16,411,965.10
Step by Step Solution
- Step 1: Write the proportion equation
21,185,208.53 : 29,235,470.24 = 11,892,776.14 : x - Step 2: Convert to fraction form
21,185,208.53/29,235,470.24 = 11,892,776.14/x - Step 3: Cross multiply
21,185,208.53x = 29,235,470.24 × 11,892,776.14 - Step 4: Simplify right side
21,185,208.53x = 347,690,902,868,595.31 - Step 5: Solve for x
x = 347,690,902,868,595.31/21,185,208.53 - Step 6: Final answer
x = 16,411,965.10
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.