Finding the Fourth Proportional to 19,688,915.70, 29,524,516.20 and 7,554,346.20
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Solution
The fourth proportional to 19,688,915.70, 29,524,516.20 and 7,554,346.20 is: 11,328,120.87
Step by Step Solution
- Step 1: Write the proportion equation
19,688,915.70 : 29,524,516.20 = 7,554,346.20 : x - Step 2: Convert to fraction form
19,688,915.70/29,524,516.20 = 7,554,346.20/x - Step 3: Cross multiply
19,688,915.70x = 29,524,516.20 × 7,554,346.20 - Step 4: Simplify right side
19,688,915.70x = 223,038,416,762,308.44 - Step 5: Solve for x
x = 223,038,416,762,308.44/19,688,915.70 - Step 6: Final answer
x = 11,328,120.87
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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.