Finding the Fourth Proportional to 55,715,474.36, 76,886,276.87 and 30,934,380.53
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Solution
The fourth proportional to 55,715,474.36, 76,886,276.87 and 30,934,380.53 is: 42,688,846.74
Step by Step Solution
- Step 1: Write the proportion equation
55,715,474.36 : 76,886,276.87 = 30,934,380.53 : x - Step 2: Convert to fraction form
55,715,474.36/76,886,276.87 = 30,934,380.53/x - Step 3: Cross multiply
55,715,474.36x = 76,886,276.87 × 30,934,380.53 - Step 4: Simplify right side
55,715,474.36x = 2,378,429,345,692,414 - Step 5: Solve for x
x = 2,378,429,345,692,414/55,715,474.36 - Step 6: Final answer
x = 42,688,846.74
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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.