Finding the Fourth Proportional to 86,782,902.40, 130,170,206.40 and 29,269,532.80
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Solution
The fourth proportional to 86,782,902.40, 130,170,206.40 and 29,269,532.80 is: 43,902,900.46
Step by Step Solution
- Step 1: Write the proportion equation
86,782,902.40 : 130,170,206.40 = 29,269,532.80 : x - Step 2: Convert to fraction form
86,782,902.40/130,170,206.40 = 29,269,532.80/x - Step 3: Cross multiply
86,782,902.40x = 130,170,206.40 × 29,269,532.80 - Step 4: Simplify right side
86,782,902.40x = 3,810,021,125,807,570 - Step 5: Solve for x
x = 3,810,021,125,807,570/86,782,902.40 - Step 6: Final answer
x = 43,902,900.46
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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.