Finding the Fourth Proportional to 1,451,567,354.40, 2,177,351,031.60 and 531,137,786.40
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Solution
The fourth proportional to 1,451,567,354.40, 2,177,351,031.60 and 531,137,786.40 is: 796,706,679.60
Step by Step Solution
- Step 1: Write the proportion equation
1,451,567,354.40 : 2,177,351,031.60 = 531,137,786.40 : x - Step 2: Convert to fraction form
1,451,567,354.40/2,177,351,031.60 = 531,137,786.40/x - Step 3: Cross multiply
1,451,567,354.40x = 2,177,351,031.60 × 531,137,786.40 - Step 4: Simplify right side
1,451,567,354.40x = 1,156,473,407,139,780,352 - Step 5: Solve for x
x = 1,156,473,407,139,780,352/1,451,567,354.40 - Step 6: Final answer
x = 796,706,679.60
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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.