Finding the Fourth Proportional to 122,355,175.20, 183,532,762.80 and 70,628,251.20
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Solution
The fourth proportional to 122,355,175.20, 183,532,762.80 and 70,628,251.20 is: 105,942,376.80
Step by Step Solution
- Step 1: Write the proportion equation
122,355,175.20 : 183,532,762.80 = 70,628,251.20 : x - Step 2: Convert to fraction form
122,355,175.20/183,532,762.80 = 70,628,251.20/x - Step 3: Cross multiply
122,355,175.20x = 183,532,762.80 × 70,628,251.20 - Step 4: Simplify right side
122,355,175.20x = 12,962,598,074,468,416 - Step 5: Solve for x
x = 12,962,598,074,468,416/122,355,175.20 - Step 6: Final answer
x = 105,942,376.80
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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.