Finding the Fourth Proportional to 83,794,902.21, 115,619,634.57 and 48,980,858.40
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Solution
The fourth proportional to 83,794,902.21, 115,619,634.57 and 48,980,858.40 is: 67,583,454.36
Step by Step Solution
- Step 1: Write the proportion equation
83,794,902.21 : 115,619,634.57 = 48,980,858.40 : x - Step 2: Convert to fraction form
83,794,902.21/115,619,634.57 = 48,980,858.40/x - Step 3: Cross multiply
83,794,902.21x = 115,619,634.57 × 48,980,858.40 - Step 4: Simplify right side
83,794,902.21x = 5,663,148,949,132,914 - Step 5: Solve for x
x = 5,663,148,949,132,914/83,794,902.21 - Step 6: Final answer
x = 67,583,454.36
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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.