Finding the Fourth Proportional to 122,134,057.20, 183,201,085.80 and 64,738,429.20
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Solution
The fourth proportional to 122,134,057.20, 183,201,085.80 and 64,738,429.20 is: 97,107,643.80
Step by Step Solution
- Step 1: Write the proportion equation
122,134,057.20 : 183,201,085.80 = 64,738,429.20 : x - Step 2: Convert to fraction form
122,134,057.20/183,201,085.80 = 64,738,429.20/x - Step 3: Cross multiply
122,134,057.20x = 183,201,085.80 × 64,738,429.20 - Step 4: Simplify right side
122,134,057.20x = 11,860,150,522,426,426 - Step 5: Solve for x
x = 11,860,150,522,426,426/122,134,057.20 - Step 6: Final answer
x = 97,107,643.80
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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.