Finding the Fourth Proportional to 12,224,916.57, 18,337,983.98 and 4,652,469.21
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Solution
The fourth proportional to 12,224,916.57, 18,337,983.98 and 4,652,469.21 is: 6,978,935.63
Step by Step Solution
- Step 1: Write the proportion equation
12,224,916.57 : 18,337,983.98 = 4,652,469.21 : x - Step 2: Convert to fraction form
12,224,916.57/18,337,983.98 = 4,652,469.21/x - Step 3: Cross multiply
12,224,916.57x = 18,337,983.98 × 4,652,469.21 - Step 4: Simplify right side
12,224,916.57x = 85,316,905,817,160.92 - Step 5: Solve for x
x = 85,316,905,817,160.92/12,224,916.57 - Step 6: Final answer
x = 6,978,935.63
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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.