Finding the Fourth Proportional to 113,387,264.44, 156,390,876.93 and 85,511,148.05
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Solution
The fourth proportional to 113,387,264.44, 156,390,876.93 and 85,511,148.05 is: 117,942,376.49
Step by Step Solution
- Step 1: Write the proportion equation
113,387,264.44 : 156,390,876.93 = 85,511,148.05 : x - Step 2: Convert to fraction form
113,387,264.44/156,390,876.93 = 85,511,148.05/x - Step 3: Cross multiply
113,387,264.44x = 156,390,876.93 × 85,511,148.05 - Step 4: Simplify right side
113,387,264.44x = 13,373,163,431,542,202 - Step 5: Solve for x
x = 13,373,163,431,542,202/113,387,264.44 - Step 6: Final answer
x = 117,942,376.49
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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.