Finding the Fourth Proportional to 262,440,328.20, 393,660,492.30 and 153,153,313.80
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Solution
The fourth proportional to 262,440,328.20, 393,660,492.30 and 153,153,313.80 is: 229,729,970.70
Step by Step Solution
- Step 1: Write the proportion equation
262,440,328.20 : 393,660,492.30 = 153,153,313.80 : x - Step 2: Convert to fraction form
262,440,328.20/393,660,492.30 = 153,153,313.80/x - Step 3: Cross multiply
262,440,328.20x = 393,660,492.30 × 153,153,313.80 - Step 4: Simplify right side
262,440,328.20x = 60,290,408,907,884,392 - Step 5: Solve for x
x = 60,290,408,907,884,392/262,440,328.20 - Step 6: Final answer
x = 229,729,970.70
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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.