Finding the Fourth Proportional to 10,430,163.70, 15,645,245.55 and 5,328,330.10
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Solution
The fourth proportional to 10,430,163.70, 15,645,245.55 and 5,328,330.10 is: 7,992,495.15
Step by Step Solution
- Step 1: Write the proportion equation
10,430,163.70 : 15,645,245.55 = 5,328,330.10 : x - Step 2: Convert to fraction form
10,430,163.70/15,645,245.55 = 5,328,330.10/x - Step 3: Cross multiply
10,430,163.70x = 15,645,245.55 × 5,328,330.10 - Step 4: Simplify right side
10,430,163.70x = 83,363,032,785,956.05 - Step 5: Solve for x
x = 83,363,032,785,956.05/10,430,163.70 - Step 6: Final answer
x = 7,992,495.15
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1.5x scale
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.