Finding the Fourth Proportional to 122,157,291.60, 183,235,937.40 and 73,689,872.40
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Solution
The fourth proportional to 122,157,291.60, 183,235,937.40 and 73,689,872.40 is: 110,534,808.60
Step by Step Solution
- Step 1: Write the proportion equation
122,157,291.60 : 183,235,937.40 = 73,689,872.40 : x - Step 2: Convert to fraction form
122,157,291.60/183,235,937.40 = 73,689,872.40/x - Step 3: Cross multiply
122,157,291.60x = 183,235,937.40 × 73,689,872.40 - Step 4: Simplify right side
122,157,291.60x = 13,502,632,846,100,390 - Step 5: Solve for x
x = 13,502,632,846,100,390/122,157,291.60 - Step 6: Final answer
x = 110,534,808.60
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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.