Finding the Fourth Proportional to 1,113,305,121.18, 1,536,318,977.04 and 618,299,716.14
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Solution
The fourth proportional to 1,113,305,121.18, 1,536,318,977.04 and 618,299,716.14 is: 853,230,232.51
Step by Step Solution
- Step 1: Write the proportion equation
1,113,305,121.18 : 1,536,318,977.04 = 618,299,716.14 : x - Step 2: Convert to fraction form
1,113,305,121.18/1,536,318,977.04 = 618,299,716.14/x - Step 3: Cross multiply
1,113,305,121.18x = 1,536,318,977.04 × 618,299,716.14 - Step 4: Simplify right side
1,113,305,121.18x = 949,905,587,404,327,168 - Step 5: Solve for x
x = 949,905,587,404,327,168/1,113,305,121.18 - Step 6: Final answer
x = 853,230,232.51
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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.