Finding the Fourth Proportional to 1,488,661,421.40, 2,232,992,132.10 and 1,465,703,170.20
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Solution
The fourth proportional to 1,488,661,421.40, 2,232,992,132.10 and 1,465,703,170.20 is: 2,198,554,755.30
Step by Step Solution
- Step 1: Write the proportion equation
1,488,661,421.40 : 2,232,992,132.10 = 1,465,703,170.20 : x - Step 2: Convert to fraction form
1,488,661,421.40/2,232,992,132.10 = 1,465,703,170.20/x - Step 3: Cross multiply
1,488,661,421.40x = 2,232,992,132.10 × 1,465,703,170.20 - Step 4: Simplify right side
1,488,661,421.40x = 3,272,903,647,050,627,072 - Step 5: Solve for x
x = 3,272,903,647,050,627,072/1,488,661,421.40 - Step 6: Final answer
x = 2,198,554,755.30
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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.