Finding the Fourth Proportional to 55,276,244.20, 82,914,366.30 and 39,120,437.80
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Solution
The fourth proportional to 55,276,244.20, 82,914,366.30 and 39,120,437.80 is: 58,680,656.70
Step by Step Solution
- Step 1: Write the proportion equation
55,276,244.20 : 82,914,366.30 = 39,120,437.80 : x - Step 2: Convert to fraction form
55,276,244.20/82,914,366.30 = 39,120,437.80/x - Step 3: Cross multiply
55,276,244.20x = 82,914,366.30 × 39,120,437.80 - Step 4: Simplify right side
55,276,244.20x = 3,243,646,309,565,566 - Step 5: Solve for x
x = 3,243,646,309,565,566/55,276,244.20 - Step 6: Final answer
x = 58,680,656.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.