Finding the Fourth Proportional to 866,225,093.80, 1,299,337,640.70 and 429,593,168.20
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Solution
The fourth proportional to 866,225,093.80, 1,299,337,640.70 and 429,593,168.20 is: 644,389,752.30
Step by Step Solution
- Step 1: Write the proportion equation
866,225,093.80 : 1,299,337,640.70 = 429,593,168.20 : x - Step 2: Convert to fraction form
866,225,093.80/1,299,337,640.70 = 429,593,168.20/x - Step 3: Cross multiply
866,225,093.80x = 1,299,337,640.70 × 429,593,168.20 - Step 4: Simplify right side
866,225,093.80x = 558,186,573,629,826,240 - Step 5: Solve for x
x = 558,186,573,629,826,240/866,225,093.80 - Step 6: Final answer
x = 644,389,752.30
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1.5x scale
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.