Finding the Fourth Proportional to 2,919,372,657.36, 4,027,724,647.40 and 2,213,789,614.80
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Solution
The fourth proportional to 2,919,372,657.36, 4,027,724,647.40 and 2,213,789,614.80 is: 3,054,264,063.62
Step by Step Solution
- Step 1: Write the proportion equation
2,919,372,657.36 : 4,027,724,647.40 = 2,213,789,614.80 : x - Step 2: Convert to fraction form
2,919,372,657.36/4,027,724,647.40 = 2,213,789,614.80/x - Step 3: Cross multiply
2,919,372,657.36x = 4,027,724,647.40 × 2,213,789,614.80 - Step 4: Simplify right side
2,919,372,657.36x = 8,916,534,995,688,113,152 - Step 5: Solve for x
x = 8,916,534,995,688,113,152/2,919,372,657.36 - Step 6: Final answer
x = 3,054,264,063.62
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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.