Finding the Fourth Proportional to 122,134,143.20, 183,201,214.80 and 64,738,515.20
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Solution
The fourth proportional to 122,134,143.20, 183,201,214.80 and 64,738,515.20 is: 97,107,772.80
Step by Step Solution
- Step 1: Write the proportion equation
122,134,143.20 : 183,201,214.80 = 64,738,515.20 : x - Step 2: Convert to fraction form
122,134,143.20/183,201,214.80 = 64,738,515.20/x - Step 3: Cross multiply
122,134,143.20x = 183,201,214.80 × 64,738,515.20 - Step 4: Simplify right side
122,134,143.20x = 11,860,174,628,988,266 - Step 5: Solve for x
x = 11,860,174,628,988,266/122,134,143.20 - Step 6: Final answer
x = 97,107,772.80
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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.