Finding the Fourth Proportional to 79,748,164.80, 119,622,247.20 and 19,163,890.80
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Solution
The fourth proportional to 79,748,164.80, 119,622,247.20 and 19,163,890.80 is: 28,745,836.20
Step by Step Solution
- Step 1: Write the proportion equation
79,748,164.80 : 119,622,247.20 = 19,163,890.80 : x - Step 2: Convert to fraction form
79,748,164.80/119,622,247.20 = 19,163,890.80/x - Step 3: Cross multiply
79,748,164.80x = 119,622,247.20 × 19,163,890.80 - Step 4: Simplify right side
79,748,164.80x = 2,292,427,682,591,406 - Step 5: Solve for x
x = 2,292,427,682,591,406/79,748,164.80 - Step 6: Final answer
x = 28,745,836.20
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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.