Finding the Fourth Proportional to 1,070,466,173.36, 1,474,490,879.96 and 756,660,891.68
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Solution
The fourth proportional to 1,070,466,173.36, 1,474,490,879.96 and 756,660,891.68 is: 1,042,246,463.99
Step by Step Solution
- Step 1: Write the proportion equation
1,070,466,173.36 : 1,474,490,879.96 = 756,660,891.68 : x - Step 2: Convert to fraction form
1,070,466,173.36/1,474,490,879.96 = 756,660,891.68/x - Step 3: Cross multiply
1,070,466,173.36x = 1,474,490,879.96 × 756,660,891.68 - Step 4: Simplify right side
1,070,466,173.36x = 1,115,689,584,004,561,408 - Step 5: Solve for x
x = 1,115,689,584,004,561,408/1,070,466,173.36 - Step 6: Final answer
x = 1,042,246,463.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.