Finding the Fourth Proportional to 1,346,536,414.80, 2,021,080,080.60 and 829,975,762.80
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Solution
The fourth proportional to 1,346,536,414.80, 2,021,080,080.60 and 829,975,762.80 is: 1,245,749,809.02
Step by Step Solution
- Step 1: Write the proportion equation
1,346,536,414.80 : 2,021,080,080.60 = 829,975,762.80 : x - Step 2: Convert to fraction form
1,346,536,414.80/2,021,080,080.60 = 829,975,762.80/x - Step 3: Cross multiply
1,346,536,414.80x = 2,021,080,080.60 × 829,975,762.80 - Step 4: Simplify right side
1,346,536,414.80x = 1,677,447,481,575,870,208 - Step 5: Solve for x
x = 1,677,447,481,575,870,208/1,346,536,414.80 - Step 6: Final answer
x = 1,245,749,809.02
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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.