Finding the Fourth Proportional to 480,508,679.62, 663,107,197.08 and 282,278,529.43
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Solution
The fourth proportional to 480,508,679.62, 663,107,197.08 and 282,278,529.43 is: 389,547,436.68
Step by Step Solution
- Step 1: Write the proportion equation
480,508,679.62 : 663,107,197.08 = 282,278,529.43 : x - Step 2: Convert to fraction form
480,508,679.62/663,107,197.08 = 282,278,529.43/x - Step 3: Cross multiply
480,508,679.62x = 663,107,197.08 × 282,278,529.43 - Step 4: Simplify right side
480,508,679.62x = 187,180,924,446,191,616 - Step 5: Solve for x
x = 187,180,924,446,191,616/480,508,679.62 - Step 6: Final answer
x = 389,547,436.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.