Finding the Fourth Proportional to 21,450,923.85, 32,133,304.65 and 9,920,228.79
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Solution
The fourth proportional to 21,450,923.85, 32,133,304.65 and 9,920,228.79 is: 14,860,419.82
Step by Step Solution
- Step 1: Write the proportion equation
21,450,923.85 : 32,133,304.65 = 9,920,228.79 : x - Step 2: Convert to fraction form
21,450,923.85/32,133,304.65 = 9,920,228.79/x - Step 3: Cross multiply
21,450,923.85x = 32,133,304.65 × 9,920,228.79 - Step 4: Simplify right side
21,450,923.85x = 318,769,733,906,770.81 - Step 5: Solve for x
x = 318,769,733,906,770.81/21,450,923.85 - Step 6: Final answer
x = 14,860,419.82
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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.