Finding the Fourth Proportional to 21,356,269.97, 29,471,559.33 and 11,937,048.57
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Solution
The fourth proportional to 21,356,269.97, 29,471,559.33 and 11,937,048.57 is: 16,473,074.92
Step by Step Solution
- Step 1: Write the proportion equation
21,356,269.97 : 29,471,559.33 = 11,937,048.57 : x - Step 2: Convert to fraction form
21,356,269.97/29,471,559.33 = 11,937,048.57/x - Step 3: Cross multiply
21,356,269.97x = 29,471,559.33 × 11,937,048.57 - Step 4: Simplify right side
21,356,269.97x = 351,803,435,200,610.56 - Step 5: Solve for x
x = 351,803,435,200,610.56/21,356,269.97 - Step 6: Final answer
x = 16,473,074.92
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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.