Finding the Fourth Proportional to 208,828,865.20, 313,243,297.80 and 177,923,930.80
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Solution
The fourth proportional to 208,828,865.20, 313,243,297.80 and 177,923,930.80 is: 266,885,896.20
Step by Step Solution
- Step 1: Write the proportion equation
208,828,865.20 : 313,243,297.80 = 177,923,930.80 : x - Step 2: Convert to fraction form
208,828,865.20/313,243,297.80 = 177,923,930.80/x - Step 3: Cross multiply
208,828,865.20x = 313,243,297.80 × 177,923,930.80 - Step 4: Simplify right side
208,828,865.20x = 55,733,478,841,331,000 - Step 5: Solve for x
x = 55,733,478,841,331,000/208,828,865.20 - Step 6: Final answer
x = 266,885,896.20
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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.