Finding the Fourth Proportional to 1,140,325,892.96, 1,573,649,732.24 and 618,805,124.96
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Solution
The fourth proportional to 1,140,325,892.96, 1,573,649,732.24 and 618,805,124.96 is: 853,951,072.42
Step by Step Solution
- Step 1: Write the proportion equation
1,140,325,892.96 : 1,573,649,732.24 = 618,805,124.96 : x - Step 2: Convert to fraction form
1,140,325,892.96/1,573,649,732.24 = 618,805,124.96/x - Step 3: Cross multiply
1,140,325,892.96x = 1,573,649,732.24 × 618,805,124.96 - Step 4: Simplify right side
1,140,325,892.96x = 973,782,519,202,043,776 - Step 5: Solve for x
x = 973,782,519,202,043,776/1,140,325,892.96 - Step 6: Final answer
x = 853,951,072.42
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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.