Finding the Fourth Proportional to 266,206,816.80, 398,638,378.80 and 212,459,104.80
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Solution
The fourth proportional to 266,206,816.80, 398,638,378.80 and 212,459,104.80 is: 318,152,457.99
Step by Step Solution
- Step 1: Write the proportion equation
266,206,816.80 : 398,638,378.80 = 212,459,104.80 : x - Step 2: Convert to fraction form
266,206,816.80/398,638,378.80 = 212,459,104.80/x - Step 3: Cross multiply
266,206,816.80x = 398,638,378.80 × 212,459,104.80 - Step 4: Simplify right side
266,206,816.80x = 84,694,353,098,771,312 - Step 5: Solve for x
x = 84,694,353,098,771,312/266,206,816.80 - Step 6: Final answer
x = 318,152,457.99
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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.