Finding the Fourth Proportional to 6,436,490,919.36, 8,883,093,060 and 3,578,918,047.74
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Solution
The fourth proportional to 6,436,490,919.36, 8,883,093,060 and 3,578,918,047.74 is: 4,939,315,920.82
Step by Step Solution
- Step 1: Write the proportion equation
6,436,490,919.36 : 8,883,093,060 = 3,578,918,047.74 : x - Step 2: Convert to fraction form
6,436,490,919.36/8,883,093,060 = 3,578,918,047.74/x - Step 3: Cross multiply
6,436,490,919.36x = 8,883,093,060 × 3,578,918,047.74 - Step 4: Simplify right side
6,436,490,919.36x = 31,791,862,072,187,940,864 - Step 5: Solve for x
x = 31,791,862,072,187,940,864/6,436,490,919.36 - Step 6: Final answer
x = 4,939,315,920.82
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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.