Finding the Fourth Proportional to 122,174,672.24, 168,596,709.72 and 67,170,128.24
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Solution
The fourth proportional to 122,174,672.24, 168,596,709.72 and 67,170,128.24 is: 92,692,392.01
Step by Step Solution
- Step 1: Write the proportion equation
122,174,672.24 : 168,596,709.72 = 67,170,128.24 : x - Step 2: Convert to fraction form
122,174,672.24/168,596,709.72 = 67,170,128.24/x - Step 3: Cross multiply
122,174,672.24x = 168,596,709.72 × 67,170,128.24 - Step 4: Simplify right side
122,174,672.24x = 11,324,662,612,734,454 - Step 5: Solve for x
x = 11,324,662,612,734,454/122,174,672.24 - Step 6: Final answer
x = 92,692,392.01
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1.5x scale
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.