Finding the Fourth Proportional to 112,416,091.20, 168,624,136.80 and 86,906,923.20
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Solution
The fourth proportional to 112,416,091.20, 168,624,136.80 and 86,906,923.20 is: 130,360,384.80
Step by Step Solution
- Step 1: Write the proportion equation
112,416,091.20 : 168,624,136.80 = 86,906,923.20 : x - Step 2: Convert to fraction form
112,416,091.20/168,624,136.80 = 86,906,923.20/x - Step 3: Cross multiply
112,416,091.20x = 168,624,136.80 × 86,906,923.20 - Step 4: Simplify right side
112,416,091.20x = 14,654,604,906,543,896 - Step 5: Solve for x
x = 14,654,604,906,543,896/112,416,091.20 - Step 6: Final answer
x = 130,360,384.80
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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.