Finding the Fourth Proportional to 117,043,491.20, 175,565,236.80 and 109,869,037.70
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Solution
The fourth proportional to 117,043,491.20, 175,565,236.80 and 109,869,037.70 is: 164,803,556.55
Step by Step Solution
- Step 1: Write the proportion equation
117,043,491.20 : 175,565,236.80 = 109,869,037.70 : x - Step 2: Convert to fraction form
117,043,491.20/175,565,236.80 = 109,869,037.70/x - Step 3: Cross multiply
117,043,491.20x = 175,565,236.80 × 109,869,037.70 - Step 4: Simplify right side
117,043,491.20x = 19,289,183,620,788,628 - Step 5: Solve for x
x = 19,289,183,620,788,628/117,043,491.20 - Step 6: Final answer
x = 164,803,556.55
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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.