Finding the Fourth Proportional to 1,348,246,346.20, 2,022,369,519.31 and 378,897,962.20
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Solution
The fourth proportional to 1,348,246,346.20, 2,022,369,519.31 and 378,897,962.20 is: 568,346,943.31
Step by Step Solution
- Step 1: Write the proportion equation
1,348,246,346.20 : 2,022,369,519.31 = 378,897,962.20 : x - Step 2: Convert to fraction form
1,348,246,346.20/2,022,369,519.31 = 378,897,962.20/x - Step 3: Cross multiply
1,348,246,346.20x = 2,022,369,519.31 × 378,897,962.20 - Step 4: Simplify right side
1,348,246,346.20x = 766,271,689,689,474,816 - Step 5: Solve for x
x = 766,271,689,689,474,816/1,348,246,346.20 - Step 6: Final answer
x = 568,346,943.31
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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.