Finding the Fourth Proportional to 174,960,903.20, 262,441,354.80 and 129,611,271.20
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Solution
The fourth proportional to 174,960,903.20, 262,441,354.80 and 129,611,271.20 is: 194,416,906.80
Step by Step Solution
- Step 1: Write the proportion equation
174,960,903.20 : 262,441,354.80 = 129,611,271.20 : x - Step 2: Convert to fraction form
174,960,903.20/262,441,354.80 = 129,611,271.20/x - Step 3: Cross multiply
174,960,903.20x = 262,441,354.80 × 129,611,271.20 - Step 4: Simplify right side
174,960,903.20x = 34,015,357,611,078,224 - Step 5: Solve for x
x = 34,015,357,611,078,224/174,960,903.20 - Step 6: Final answer
x = 194,416,906.80
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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.