Finding the Fourth Proportional to 324,771,206.10, 487,156,809.15 and 221,459,075.70
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Solution
The fourth proportional to 324,771,206.10, 487,156,809.15 and 221,459,075.70 is: 332,188,613.55
Step by Step Solution
- Step 1: Write the proportion equation
324,771,206.10 : 487,156,809.15 = 221,459,075.70 : x - Step 2: Convert to fraction form
324,771,206.10/487,156,809.15 = 221,459,075.70/x - Step 3: Cross multiply
324,771,206.10x = 487,156,809.15 × 221,459,075.70 - Step 4: Simplify right side
324,771,206.10x = 107,885,296,675,320,288 - Step 5: Solve for x
x = 107,885,296,675,320,288/324,771,206.10 - Step 6: Final answer
x = 332,188,613.55
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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.