Finding the Fourth Proportional to 2,197,387,954.36, 3,295,948,443.53 and 779,355,350.20
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Solution
The fourth proportional to 2,197,387,954.36, 3,295,948,443.53 and 779,355,350.20 is: 1,168,985,680.63
Step by Step Solution
- Step 1: Write the proportion equation
2,197,387,954.36 : 3,295,948,443.53 = 779,355,350.20 : x - Step 2: Convert to fraction form
2,197,387,954.36/3,295,948,443.53 = 779,355,350.20/x - Step 3: Cross multiply
2,197,387,954.36x = 3,295,948,443.53 × 779,355,350.20 - Step 4: Simplify right side
2,197,387,954.36x = 2,568,715,053,442,176,512 - Step 5: Solve for x
x = 2,568,715,053,442,176,512/2,197,387,954.36 - Step 6: Final answer
x = 1,168,985,680.63
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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.