Finding the Fourth Proportional to 3,999,078,335.36, 5,999,011,754.88 and 1,378,537,446.08
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Solution
The fourth proportional to 3,999,078,335.36, 5,999,011,754.88 and 1,378,537,446.08 is: 2,067,942,073.17
Step by Step Solution
- Step 1: Write the proportion equation
3,999,078,335.36 : 5,999,011,754.88 = 1,378,537,446.08 : x - Step 2: Convert to fraction form
3,999,078,335.36/5,999,011,754.88 = 1,378,537,446.08/x - Step 3: Cross multiply
3,999,078,335.36x = 5,999,011,754.88 × 1,378,537,446.08 - Step 4: Simplify right side
3,999,078,335.36x = 8,269,862,343,576,173,568 - Step 5: Solve for x
x = 8,269,862,343,576,173,568/3,999,078,335.36 - Step 6: Final answer
x = 2,067,942,073.17
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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.