Finding the Fourth Proportional to 22,212,928.44, 30,652,905.84 and 12,920,516.52
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Solution
The fourth proportional to 22,212,928.44, 30,652,905.84 and 12,920,516.52 is: 17,829,768.70
Step by Step Solution
- Step 1: Write the proportion equation
22,212,928.44 : 30,652,905.84 = 12,920,516.52 : x - Step 2: Convert to fraction form
22,212,928.44/30,652,905.84 = 12,920,516.52/x - Step 3: Cross multiply
22,212,928.44x = 30,652,905.84 × 12,920,516.52 - Step 4: Simplify right side
22,212,928.44x = 396,051,376,291,724.44 - Step 5: Solve for x
x = 396,051,376,291,724.44/22,212,928.44 - Step 6: Final answer
x = 17,829,768.70
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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.