Finding the Fourth Proportional to 99,853,023.40, 149,779,535.10 and 83,728,709.80
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Solution
The fourth proportional to 99,853,023.40, 149,779,535.10 and 83,728,709.80 is: 125,593,064.70
Step by Step Solution
- Step 1: Write the proportion equation
99,853,023.40 : 149,779,535.10 = 83,728,709.80 : x - Step 2: Convert to fraction form
99,853,023.40/149,779,535.10 = 83,728,709.80/x - Step 3: Cross multiply
99,853,023.40x = 149,779,535.10 × 83,728,709.80 - Step 4: Simplify right side
99,853,023.40x = 12,540,847,228,366,814 - Step 5: Solve for x
x = 12,540,847,228,366,814/99,853,023.40 - Step 6: Final answer
x = 125,593,064.70
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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.