Finding the Fourth Proportional to 155,060,439.15, 213,984,841.11 and 85,448,311.23
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Solution
The fourth proportional to 155,060,439.15, 213,984,841.11 and 85,448,311.23 is: 117,919,460.32
Step by Step Solution
- Step 1: Write the proportion equation
155,060,439.15 : 213,984,841.11 = 85,448,311.23 : x - Step 2: Convert to fraction form
155,060,439.15/213,984,841.11 = 85,448,311.23/x - Step 3: Cross multiply
155,060,439.15x = 213,984,841.11 × 85,448,311.23 - Step 4: Simplify right side
155,060,439.15x = 18,284,643,301,669,380 - Step 5: Solve for x
x = 18,284,643,301,669,380/155,060,439.15 - Step 6: Final answer
x = 117,919,460.32
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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.