Finding the Fourth Proportional to 21,203,737.81, 29,262,408.03 and 15,967,507.74
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Solution
The fourth proportional to 21,203,737.81, 29,262,408.03 and 15,967,507.74 is: 22,036,101.89
Step by Step Solution
- Step 1: Write the proportion equation
21,203,737.81 : 29,262,408.03 = 15,967,507.74 : x - Step 2: Convert to fraction form
21,203,737.81/29,262,408.03 = 15,967,507.74/x - Step 3: Cross multiply
21,203,737.81x = 29,262,408.03 × 15,967,507.74 - Step 4: Simplify right side
21,203,737.81x = 467,247,726,710,063.19 - Step 5: Solve for x
x = 467,247,726,710,063.19/21,203,737.81 - Step 6: Final answer
x = 22,036,101.89
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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.