Finding the Fourth Proportional to 136,354,440.11, 188,163,690.90 and 76,814,349.26
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Solution
The fourth proportional to 136,354,440.11, 188,163,690.90 and 76,814,349.26 is: 106,000,739.39
Step by Step Solution
- Step 1: Write the proportion equation
136,354,440.11 : 188,163,690.90 = 76,814,349.26 : x - Step 2: Convert to fraction form
136,354,440.11/188,163,690.90 = 76,814,349.26/x - Step 3: Cross multiply
136,354,440.11x = 188,163,690.90 × 76,814,349.26 - Step 4: Simplify right side
136,354,440.11x = 14,453,671,470,843,286 - Step 5: Solve for x
x = 14,453,671,470,843,286/136,354,440.11 - Step 6: Final answer
x = 106,000,739.39
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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.