Finding the Fourth Proportional to 177,413,266.80, 266,119,900.20 and 81,861,778.80
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Solution
The fourth proportional to 177,413,266.80, 266,119,900.20 and 81,861,778.80 is: 122,792,668.20
Step by Step Solution
- Step 1: Write the proportion equation
177,413,266.80 : 266,119,900.20 = 81,861,778.80 : x - Step 2: Convert to fraction form
177,413,266.80/266,119,900.20 = 81,861,778.80/x - Step 3: Cross multiply
177,413,266.80x = 266,119,900.20 × 81,861,778.80 - Step 4: Simplify right side
177,413,266.80x = 21,785,048,404,450,472 - Step 5: Solve for x
x = 21,785,048,404,450,472/177,413,266.80 - Step 6: Final answer
x = 122,792,668.20
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1.5x scale
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.