Finding the Fourth Proportional to 128,330,177.20, 192,523,259.40 and 37,446,362.80
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Solution
The fourth proportional to 128,330,177.20, 192,523,259.40 and 37,446,362.80 is: 56,177,712.65
Step by Step Solution
- Step 1: Write the proportion equation
128,330,177.20 : 192,523,259.40 = 37,446,362.80 : x - Step 2: Convert to fraction form
128,330,177.20/192,523,259.40 = 37,446,362.80/x - Step 3: Cross multiply
128,330,177.20x = 192,523,259.40 × 37,446,362.80 - Step 4: Simplify right side
128,330,177.20x = 7,209,295,818,930,910 - Step 5: Solve for x
x = 7,209,295,818,930,910/128,330,177.20 - Step 6: Final answer
x = 56,177,712.65
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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.