Finding the Fourth Proportional to 128,508,129.26, 192,758,515.16 and 36,391,649.47
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Solution
The fourth proportional to 128,508,129.26, 192,758,515.16 and 36,391,649.47 is: 54,586,432.44
Step by Step Solution
- Step 1: Write the proportion equation
128,508,129.26 : 192,758,515.16 = 36,391,649.47 : x - Step 2: Convert to fraction form
128,508,129.26/192,758,515.16 = 36,391,649.47/x - Step 3: Cross multiply
128,508,129.26x = 192,758,515.16 × 36,391,649.47 - Step 4: Simplify right side
128,508,129.26x = 7,014,800,316,480,814 - Step 5: Solve for x
x = 7,014,800,316,480,814/128,508,129.26 - Step 6: Final answer
x = 54,586,432.44
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.